From 64603651d89dbedfdd9e63ad8766835cbde7b004 Mon Sep 17 00:00:00 2001
From: Hamza Remmal <hamza@remmal.net>
Date: Mon, 5 May 2025 17:18:15 +0200
Subject: [PATCH 01/15] chore: add `scala.language.2` to files in `scala`

---
 library/src/scala/AnyVal.scala                  | 2 ++
 library/src/scala/AnyValCompanion.scala         | 2 ++
 library/src/scala/App.scala                     | 2 ++
 library/src/scala/Array.scala                   | 2 ++
 library/src/scala/Boolean.scala                 | 2 ++
 library/src/scala/Byte.scala                    | 2 ++
 library/src/scala/Char.scala                    | 2 ++
 library/src/scala/Console.scala                 | 2 ++
 library/src/scala/DelayedInit.scala             | 2 ++
 library/src/scala/Double.scala                  | 2 ++
 library/src/scala/DummyImplicit.scala           | 2 ++
 library/src/scala/Dynamic.scala                 | 2 ++
 library/src/scala/Enumeration.scala             | 2 ++
 library/src/scala/Equals.scala                  | 2 ++
 library/src/scala/Float.scala                   | 2 ++
 library/src/scala/Function.scala                | 2 ++
 library/src/scala/Function0.scala               | 1 +
 library/src/scala/Function1.scala               | 1 +
 library/src/scala/Function10.scala              | 1 +
 library/src/scala/Function11.scala              | 1 +
 library/src/scala/Function12.scala              | 1 +
 library/src/scala/Function13.scala              | 1 +
 library/src/scala/Function14.scala              | 1 +
 library/src/scala/Function15.scala              | 1 +
 library/src/scala/Function16.scala              | 1 +
 library/src/scala/Function17.scala              | 1 +
 library/src/scala/Function18.scala              | 1 +
 library/src/scala/Function19.scala              | 1 +
 library/src/scala/Function2.scala               | 1 +
 library/src/scala/Function20.scala              | 1 +
 library/src/scala/Function21.scala              | 1 +
 library/src/scala/Function22.scala              | 1 +
 library/src/scala/Function3.scala               | 1 +
 library/src/scala/Function4.scala               | 1 +
 library/src/scala/Function5.scala               | 1 +
 library/src/scala/Function6.scala               | 1 +
 library/src/scala/Function7.scala               | 1 +
 library/src/scala/Function8.scala               | 1 +
 library/src/scala/Function9.scala               | 1 +
 library/src/scala/Int.scala                     | 2 ++
 library/src/scala/Long.scala                    | 2 ++
 library/src/scala/MatchError.scala              | 2 ++
 library/src/scala/NotImplementedError.scala     | 2 ++
 library/src/scala/Option.scala                  | 2 ++
 library/src/scala/PartialFunction.scala         | 1 +
 library/src/scala/Predef.scala                  | 1 +
 library/src/scala/Product.scala                 | 2 ++
 library/src/scala/Product1.scala                | 2 ++
 library/src/scala/Product10.scala               | 2 ++
 library/src/scala/Product11.scala               | 2 ++
 library/src/scala/Product12.scala               | 2 ++
 library/src/scala/Product13.scala               | 2 ++
 library/src/scala/Product14.scala               | 2 ++
 library/src/scala/Product15.scala               | 2 ++
 library/src/scala/Product16.scala               | 2 ++
 library/src/scala/Product17.scala               | 2 ++
 library/src/scala/Product18.scala               | 2 ++
 library/src/scala/Product19.scala               | 2 ++
 library/src/scala/Product2.scala                | 2 ++
 library/src/scala/Product20.scala               | 2 ++
 library/src/scala/Product21.scala               | 2 ++
 library/src/scala/Product22.scala               | 2 ++
 library/src/scala/Product3.scala                | 2 ++
 library/src/scala/Product4.scala                | 2 ++
 library/src/scala/Product5.scala                | 2 ++
 library/src/scala/Product6.scala                | 2 ++
 library/src/scala/Product7.scala                | 2 ++
 library/src/scala/Product8.scala                | 2 ++
 library/src/scala/Product9.scala                | 2 ++
 library/src/scala/Proxy.scala                   | 2 ++
 library/src/scala/SerialVersionUID.scala        | 2 ++
 library/src/scala/Short.scala                   | 2 ++
 library/src/scala/Specializable.scala           | 2 ++
 library/src/scala/StringContext.scala           | 1 +
 library/src/scala/Symbol.scala                  | 2 ++
 library/src/scala/Tuple1.scala                  | 1 +
 library/src/scala/Tuple10.scala                 | 1 +
 library/src/scala/Tuple11.scala                 | 1 +
 library/src/scala/Tuple12.scala                 | 1 +
 library/src/scala/Tuple13.scala                 | 1 +
 library/src/scala/Tuple14.scala                 | 1 +
 library/src/scala/Tuple15.scala                 | 1 +
 library/src/scala/Tuple16.scala                 | 1 +
 library/src/scala/Tuple17.scala                 | 1 +
 library/src/scala/Tuple18.scala                 | 1 +
 library/src/scala/Tuple19.scala                 | 1 +
 library/src/scala/Tuple2.scala                  | 1 +
 library/src/scala/Tuple20.scala                 | 1 +
 library/src/scala/Tuple21.scala                 | 1 +
 library/src/scala/Tuple22.scala                 | 1 +
 library/src/scala/Tuple3.scala                  | 1 +
 library/src/scala/Tuple4.scala                  | 1 +
 library/src/scala/Tuple5.scala                  | 1 +
 library/src/scala/Tuple6.scala                  | 1 +
 library/src/scala/Tuple7.scala                  | 1 +
 library/src/scala/Tuple8.scala                  | 1 +
 library/src/scala/Tuple9.scala                  | 1 +
 library/src/scala/UninitializedError.scala      | 2 ++
 library/src/scala/UninitializedFieldError.scala | 2 ++
 library/src/scala/Unit.scala                    | 1 +
 library/src/scala/ValueOf.scala                 | 2 ++
 library/src/scala/deprecated.scala              | 1 +
 library/src/scala/deprecatedInheritance.scala   | 1 +
 library/src/scala/deprecatedName.scala          | 1 +
 library/src/scala/deprecatedOverriding.scala    | 1 +
 library/src/scala/inline.scala                  | 2 ++
 library/src/scala/language.scala                | 2 ++
 library/src/scala/languageFeature.scala         | 1 +
 library/src/scala/native.scala                  | 2 ++
 library/src/scala/noinline.scala                | 2 ++
 library/src/scala/package.scala                 | 1 +
 library/src/scala/specialized.scala             | 2 ++
 library/src/scala/throws.scala                  | 2 ++
 library/src/scala/transient.scala               | 1 +
 library/src/scala/typeConstraints.scala         | 1 +
 library/src/scala/unchecked.scala               | 2 ++
 library/src/scala/volatile.scala                | 1 +
 117 files changed, 176 insertions(+)

diff --git a/library/src/scala/AnyVal.scala b/library/src/scala/AnyVal.scala
index 79be48d642be..8744bfc32537 100644
--- a/library/src/scala/AnyVal.scala
+++ b/library/src/scala/AnyVal.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** `AnyVal` is the root class of all ''value types'', which describe values
  *  not implemented as objects in the underlying host system. Value classes
  *  are specified in Scala Language Specification, section 12.2.
diff --git a/library/src/scala/AnyValCompanion.scala b/library/src/scala/AnyValCompanion.scala
index 2bb8584f8bac..0e319836e0e6 100644
--- a/library/src/scala/AnyValCompanion.scala
+++ b/library/src/scala/AnyValCompanion.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** A common supertype for companion classes of primitive types.
  *
  *  A common trait for /companion/ objects of primitive types comes handy
diff --git a/library/src/scala/App.scala b/library/src/scala/App.scala
index 896cf8d9b22e..6529d520ce2b 100644
--- a/library/src/scala/App.scala
+++ b/library/src/scala/App.scala
@@ -14,6 +14,8 @@ package scala
 
 import java.lang.System.{currentTimeMillis => currentTime}
 
+import scala.language.`2`
+
 import scala.annotation.nowarn
 import scala.collection.mutable.ListBuffer
 
diff --git a/library/src/scala/Array.scala b/library/src/scala/Array.scala
index 02af1837e1b7..c90ec6d3c66b 100644
--- a/library/src/scala/Array.scala
+++ b/library/src/scala/Array.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 //import scala.collection.generic._
 import scala.collection.{Factory, immutable, mutable}
 import mutable.ArrayBuilder
diff --git a/library/src/scala/Boolean.scala b/library/src/scala/Boolean.scala
index ea8a2e37cda9..faf57580f5bf 100644
--- a/library/src/scala/Boolean.scala
+++ b/library/src/scala/Boolean.scala
@@ -16,6 +16,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** `Boolean` (equivalent to Java's `boolean` primitive type) is a
  *  subtype of [[scala.AnyVal]]. Instances of `Boolean` are not
  *  represented by an object in the underlying runtime system.
diff --git a/library/src/scala/Byte.scala b/library/src/scala/Byte.scala
index 1f32d4d0bca1..2dc16cd2be25 100644
--- a/library/src/scala/Byte.scala
+++ b/library/src/scala/Byte.scala
@@ -16,6 +16,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** `Byte`, a 8-bit signed integer (equivalent to Java's `byte` primitive type) is a
  *  subtype of [[scala.AnyVal]]. Instances of `Byte` are not
  *  represented by an object in the underlying runtime system.
diff --git a/library/src/scala/Char.scala b/library/src/scala/Char.scala
index 52871422a39e..61e4a35b91b9 100644
--- a/library/src/scala/Char.scala
+++ b/library/src/scala/Char.scala
@@ -16,6 +16,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** `Char`, a 16-bit unsigned integer (equivalent to Java's `char` primitive type) is a
  *  subtype of [[scala.AnyVal]]. Instances of `Char` are not
  *  represented by an object in the underlying runtime system.
diff --git a/library/src/scala/Console.scala b/library/src/scala/Console.scala
index 82e5ac10413e..39548a782530 100644
--- a/library/src/scala/Console.scala
+++ b/library/src/scala/Console.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 import java.io.{ BufferedReader, InputStream, InputStreamReader, OutputStream, PrintStream, Reader }
 import scala.io.AnsiColor
 import scala.util.DynamicVariable
diff --git a/library/src/scala/DelayedInit.scala b/library/src/scala/DelayedInit.scala
index 924d405d6c9d..6423a7609553 100644
--- a/library/src/scala/DelayedInit.scala
+++ b/library/src/scala/DelayedInit.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** Classes and objects (but note, not traits) inheriting the `DelayedInit`
  *  marker trait will have their initialization code rewritten as follows:
  *  `code` becomes `delayedInit(code)`.
diff --git a/library/src/scala/Double.scala b/library/src/scala/Double.scala
index 84d9f31daa90..ebe7ae7a36df 100644
--- a/library/src/scala/Double.scala
+++ b/library/src/scala/Double.scala
@@ -16,6 +16,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** `Double`, a 64-bit IEEE-754 floating point number (equivalent to Java's `double` primitive type) is a
  *  subtype of [[scala.AnyVal]]. Instances of `Double` are not
  *  represented by an object in the underlying runtime system.
diff --git a/library/src/scala/DummyImplicit.scala b/library/src/scala/DummyImplicit.scala
index 07e7acfc6ebb..64c612819984 100644
--- a/library/src/scala/DummyImplicit.scala
+++ b/library/src/scala/DummyImplicit.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** A type for which there is always an implicit value. */
 final class DummyImplicit private ()
 
diff --git a/library/src/scala/Dynamic.scala b/library/src/scala/Dynamic.scala
index f80df3e49b7d..3709a3ce27e0 100644
--- a/library/src/scala/Dynamic.scala
+++ b/library/src/scala/Dynamic.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** A marker trait that enables dynamic invocations. Instances `x` of this
  *  trait allow method invocations `x.meth(args)` for arbitrary method
  *  names `meth` and argument lists `args` as well as field accesses
diff --git a/library/src/scala/Enumeration.scala b/library/src/scala/Enumeration.scala
index bf61198f7d3b..58ed48ac917d 100644
--- a/library/src/scala/Enumeration.scala
+++ b/library/src/scala/Enumeration.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 import scala.collection.{SpecificIterableFactory, StrictOptimizedIterableOps, View, immutable, mutable}
 import java.lang.reflect.{Field => JField, Method => JMethod}
 
diff --git a/library/src/scala/Equals.scala b/library/src/scala/Equals.scala
index 0c35742a6746..35738821658b 100644
--- a/library/src/scala/Equals.scala
+++ b/library/src/scala/Equals.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** An interface containing operations for equality.
  *  The only method not already present in class `AnyRef` is `canEqual`.
  */
diff --git a/library/src/scala/Float.scala b/library/src/scala/Float.scala
index c63620ed8d53..7e0c41ce7b79 100644
--- a/library/src/scala/Float.scala
+++ b/library/src/scala/Float.scala
@@ -16,6 +16,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** `Float`, a 32-bit IEEE-754 floating point number (equivalent to Java's `float` primitive type) is a
  *  subtype of [[scala.AnyVal]]. Instances of `Float` are not
  *  represented by an object in the underlying runtime system.
diff --git a/library/src/scala/Function.scala b/library/src/scala/Function.scala
index be612752552e..f57ebe871c6d 100644
--- a/library/src/scala/Function.scala
+++ b/library/src/scala/Function.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** A module defining utility methods for higher-order functional programming.
  */
 object Function {
diff --git a/library/src/scala/Function0.scala b/library/src/scala/Function0.scala
index 0cdea05ebc05..1353d393ac55 100644
--- a/library/src/scala/Function0.scala
+++ b/library/src/scala/Function0.scala
@@ -15,6 +15,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 0 parameters.
  *  
diff --git a/library/src/scala/Function1.scala b/library/src/scala/Function1.scala
index 10d366303ab2..5bdb2b73edd1 100644
--- a/library/src/scala/Function1.scala
+++ b/library/src/scala/Function1.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 object Function1 {
 
diff --git a/library/src/scala/Function10.scala b/library/src/scala/Function10.scala
index 59192bf8ee7d..e22424c83a37 100644
--- a/library/src/scala/Function10.scala
+++ b/library/src/scala/Function10.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 10 parameters.
  *
diff --git a/library/src/scala/Function11.scala b/library/src/scala/Function11.scala
index 10b1509bf369..190cd39d8126 100644
--- a/library/src/scala/Function11.scala
+++ b/library/src/scala/Function11.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 11 parameters.
  *
diff --git a/library/src/scala/Function12.scala b/library/src/scala/Function12.scala
index 08d962583108..11bc4a805ca6 100644
--- a/library/src/scala/Function12.scala
+++ b/library/src/scala/Function12.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 12 parameters.
  *
diff --git a/library/src/scala/Function13.scala b/library/src/scala/Function13.scala
index 971368c1d467..442bde0a3425 100644
--- a/library/src/scala/Function13.scala
+++ b/library/src/scala/Function13.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 13 parameters.
  *
diff --git a/library/src/scala/Function14.scala b/library/src/scala/Function14.scala
index c0b72feef42c..c9d388c1efbe 100644
--- a/library/src/scala/Function14.scala
+++ b/library/src/scala/Function14.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 14 parameters.
  *
diff --git a/library/src/scala/Function15.scala b/library/src/scala/Function15.scala
index 67c7e1dc470a..f38da1c29d79 100644
--- a/library/src/scala/Function15.scala
+++ b/library/src/scala/Function15.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 15 parameters.
  *
diff --git a/library/src/scala/Function16.scala b/library/src/scala/Function16.scala
index 8ea8dec9b117..804e406eb98d 100644
--- a/library/src/scala/Function16.scala
+++ b/library/src/scala/Function16.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 16 parameters.
  *
diff --git a/library/src/scala/Function17.scala b/library/src/scala/Function17.scala
index bc157115963d..a68259f0d086 100644
--- a/library/src/scala/Function17.scala
+++ b/library/src/scala/Function17.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 17 parameters.
  *
diff --git a/library/src/scala/Function18.scala b/library/src/scala/Function18.scala
index d8ff8db313c6..bf0265c42e62 100644
--- a/library/src/scala/Function18.scala
+++ b/library/src/scala/Function18.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 18 parameters.
  *
diff --git a/library/src/scala/Function19.scala b/library/src/scala/Function19.scala
index 9d79b5c2d7c1..c8314ee95561 100644
--- a/library/src/scala/Function19.scala
+++ b/library/src/scala/Function19.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 19 parameters.
  *
diff --git a/library/src/scala/Function2.scala b/library/src/scala/Function2.scala
index f30d57e49344..2d952275ac08 100644
--- a/library/src/scala/Function2.scala
+++ b/library/src/scala/Function2.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 2 parameters.
  *  
diff --git a/library/src/scala/Function20.scala b/library/src/scala/Function20.scala
index 1ed5e55a1616..db85af6a3bbc 100644
--- a/library/src/scala/Function20.scala
+++ b/library/src/scala/Function20.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 20 parameters.
  *
diff --git a/library/src/scala/Function21.scala b/library/src/scala/Function21.scala
index 4c81489ec323..6d5fbd64544f 100644
--- a/library/src/scala/Function21.scala
+++ b/library/src/scala/Function21.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 21 parameters.
  *
diff --git a/library/src/scala/Function22.scala b/library/src/scala/Function22.scala
index c3911f34c08e..3695b49756f5 100644
--- a/library/src/scala/Function22.scala
+++ b/library/src/scala/Function22.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 22 parameters.
  *
diff --git a/library/src/scala/Function3.scala b/library/src/scala/Function3.scala
index 77c1a8f38541..c5592307807d 100644
--- a/library/src/scala/Function3.scala
+++ b/library/src/scala/Function3.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 3 parameters.
  *
diff --git a/library/src/scala/Function4.scala b/library/src/scala/Function4.scala
index f68164cf2727..96f8775ac88a 100644
--- a/library/src/scala/Function4.scala
+++ b/library/src/scala/Function4.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 4 parameters.
  *
diff --git a/library/src/scala/Function5.scala b/library/src/scala/Function5.scala
index b5c347f5ee30..331635dfecc3 100644
--- a/library/src/scala/Function5.scala
+++ b/library/src/scala/Function5.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 5 parameters.
  *
diff --git a/library/src/scala/Function6.scala b/library/src/scala/Function6.scala
index 784a51f61e59..0d8bb0d03538 100644
--- a/library/src/scala/Function6.scala
+++ b/library/src/scala/Function6.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 6 parameters.
  *
diff --git a/library/src/scala/Function7.scala b/library/src/scala/Function7.scala
index 07c90bfd91d3..cadc9a27b220 100644
--- a/library/src/scala/Function7.scala
+++ b/library/src/scala/Function7.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 7 parameters.
  *
diff --git a/library/src/scala/Function8.scala b/library/src/scala/Function8.scala
index 27ee36b2de90..a23434667b0c 100644
--- a/library/src/scala/Function8.scala
+++ b/library/src/scala/Function8.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 8 parameters.
  *
diff --git a/library/src/scala/Function9.scala b/library/src/scala/Function9.scala
index 5bf1a5b16565..49ba56da8daf 100644
--- a/library/src/scala/Function9.scala
+++ b/library/src/scala/Function9.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A function of 9 parameters.
  *
diff --git a/library/src/scala/Int.scala b/library/src/scala/Int.scala
index 003bd502a730..2cd806736a06 100644
--- a/library/src/scala/Int.scala
+++ b/library/src/scala/Int.scala
@@ -16,6 +16,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** `Int`, a 32-bit signed integer (equivalent to Java's `int` primitive type) is a
  *  subtype of [[scala.AnyVal]]. Instances of `Int` are not
  *  represented by an object in the underlying runtime system.
diff --git a/library/src/scala/Long.scala b/library/src/scala/Long.scala
index 09bd35c64677..45c0e836d6bb 100644
--- a/library/src/scala/Long.scala
+++ b/library/src/scala/Long.scala
@@ -16,6 +16,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** `Long`, a 64-bit signed integer (equivalent to Java's `long` primitive type) is a
  *  subtype of [[scala.AnyVal]]. Instances of `Long` are not
  *  represented by an object in the underlying runtime system.
diff --git a/library/src/scala/MatchError.scala b/library/src/scala/MatchError.scala
index 39fa11e817f0..42e150357ed3 100644
--- a/library/src/scala/MatchError.scala
+++ b/library/src/scala/MatchError.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** This class implements errors which are thrown whenever an
  *  object doesn't match any pattern of a pattern matching
  *  expression.
diff --git a/library/src/scala/NotImplementedError.scala b/library/src/scala/NotImplementedError.scala
index 22361b78b85b..dec377cf20af 100644
--- a/library/src/scala/NotImplementedError.scala
+++ b/library/src/scala/NotImplementedError.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** Throwing this exception can be a temporary replacement for a method
  *  body that remains to be implemented. For instance, the exception is thrown by
  *  `Predef.???`.
diff --git a/library/src/scala/Option.scala b/library/src/scala/Option.scala
index 514bf50607ff..339fa84aba31 100644
--- a/library/src/scala/Option.scala
+++ b/library/src/scala/Option.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Option {
 
   import scala.language.implicitConversions
diff --git a/library/src/scala/PartialFunction.scala b/library/src/scala/PartialFunction.scala
index 5150f52ef7e3..bb79b7b15501 100644
--- a/library/src/scala/PartialFunction.scala
+++ b/library/src/scala/PartialFunction.scala
@@ -12,6 +12,7 @@
 
 package scala
 
+import scala.language.`2`
 import scala.annotation.nowarn
 
 /** A partial function of type `PartialFunction[A, B]` is a unary function
diff --git a/library/src/scala/Predef.scala b/library/src/scala/Predef.scala
index 26dbc568a9ab..6a5f57e29200 100644
--- a/library/src/scala/Predef.scala
+++ b/library/src/scala/Predef.scala
@@ -12,6 +12,7 @@
 
 package scala
 
+import scala.language.`2`
 import scala.language.implicitConversions
 
 import scala.collection.{mutable, immutable, ArrayOps, StringOps}, immutable.WrappedString
diff --git a/library/src/scala/Product.scala b/library/src/scala/Product.scala
index c0fa80a95ef5..85c448eb6598 100644
--- a/library/src/scala/Product.scala
+++ b/library/src/scala/Product.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** Base trait for all products, which in the standard library include at
  *  least [[scala.Product1]] through [[scala.Product22]] and therefore also
  *  their subclasses [[scala.Tuple1]] through [[scala.Tuple22]].  In addition,
diff --git a/library/src/scala/Product1.scala b/library/src/scala/Product1.scala
index 912f4dc8f0d8..1ea5499515a5 100644
--- a/library/src/scala/Product1.scala
+++ b/library/src/scala/Product1.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product1 {
   def unapply[T1](x: Product1[T1]): Option[Product1[T1]] =
     Some(x)
diff --git a/library/src/scala/Product10.scala b/library/src/scala/Product10.scala
index 8ab742e3458f..501354dbb550 100644
--- a/library/src/scala/Product10.scala
+++ b/library/src/scala/Product10.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product10 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10](x: Product10[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10]): Option[Product10[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10]] =
     Some(x)
diff --git a/library/src/scala/Product11.scala b/library/src/scala/Product11.scala
index c970235fc693..4a73bd530a61 100644
--- a/library/src/scala/Product11.scala
+++ b/library/src/scala/Product11.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product11 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11](x: Product11[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11]): Option[Product11[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11]] =
     Some(x)
diff --git a/library/src/scala/Product12.scala b/library/src/scala/Product12.scala
index 2823288e430b..e32c8e59bea9 100644
--- a/library/src/scala/Product12.scala
+++ b/library/src/scala/Product12.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product12 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12](x: Product12[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12]): Option[Product12[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12]] =
     Some(x)
diff --git a/library/src/scala/Product13.scala b/library/src/scala/Product13.scala
index 25e804081407..53fe1e285219 100644
--- a/library/src/scala/Product13.scala
+++ b/library/src/scala/Product13.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product13 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13](x: Product13[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13]): Option[Product13[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13]] =
     Some(x)
diff --git a/library/src/scala/Product14.scala b/library/src/scala/Product14.scala
index 76afd49e1856..0cf2cd5af713 100644
--- a/library/src/scala/Product14.scala
+++ b/library/src/scala/Product14.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product14 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14](x: Product14[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14]): Option[Product14[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14]] =
     Some(x)
diff --git a/library/src/scala/Product15.scala b/library/src/scala/Product15.scala
index dd6e49a33eba..e2c072b2f431 100644
--- a/library/src/scala/Product15.scala
+++ b/library/src/scala/Product15.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product15 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15](x: Product15[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15]): Option[Product15[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15]] =
     Some(x)
diff --git a/library/src/scala/Product16.scala b/library/src/scala/Product16.scala
index 900ccdcab195..39a11f02aab1 100644
--- a/library/src/scala/Product16.scala
+++ b/library/src/scala/Product16.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product16 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16](x: Product16[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16]): Option[Product16[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16]] =
     Some(x)
diff --git a/library/src/scala/Product17.scala b/library/src/scala/Product17.scala
index 4e6636f2e5d1..3dc588beb3d7 100644
--- a/library/src/scala/Product17.scala
+++ b/library/src/scala/Product17.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product17 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17](x: Product17[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17]): Option[Product17[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17]] =
     Some(x)
diff --git a/library/src/scala/Product18.scala b/library/src/scala/Product18.scala
index 4a68f49f5623..8f8b128b895a 100644
--- a/library/src/scala/Product18.scala
+++ b/library/src/scala/Product18.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product18 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18](x: Product18[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18]): Option[Product18[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18]] =
     Some(x)
diff --git a/library/src/scala/Product19.scala b/library/src/scala/Product19.scala
index fdc4c232742d..53b0b556a501 100644
--- a/library/src/scala/Product19.scala
+++ b/library/src/scala/Product19.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product19 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19](x: Product19[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19]): Option[Product19[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19]] =
     Some(x)
diff --git a/library/src/scala/Product2.scala b/library/src/scala/Product2.scala
index 2498e9727b7f..31b0be9a27a3 100644
--- a/library/src/scala/Product2.scala
+++ b/library/src/scala/Product2.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product2 {
   def unapply[T1, T2](x: Product2[T1, T2]): Option[Product2[T1, T2]] =
     Some(x)
diff --git a/library/src/scala/Product20.scala b/library/src/scala/Product20.scala
index 206dc1e375cc..54594f1b3bb9 100644
--- a/library/src/scala/Product20.scala
+++ b/library/src/scala/Product20.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product20 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20](x: Product20[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20]): Option[Product20[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20]] =
     Some(x)
diff --git a/library/src/scala/Product21.scala b/library/src/scala/Product21.scala
index 0cbb44068fc8..91c0c3fa6938 100644
--- a/library/src/scala/Product21.scala
+++ b/library/src/scala/Product21.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product21 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21](x: Product21[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21]): Option[Product21[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21]] =
     Some(x)
diff --git a/library/src/scala/Product22.scala b/library/src/scala/Product22.scala
index df6963c03843..b603d2ba5440 100644
--- a/library/src/scala/Product22.scala
+++ b/library/src/scala/Product22.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product22 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22](x: Product22[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22]): Option[Product22[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22]] =
     Some(x)
diff --git a/library/src/scala/Product3.scala b/library/src/scala/Product3.scala
index 48de4b6e7d20..66a979542d56 100644
--- a/library/src/scala/Product3.scala
+++ b/library/src/scala/Product3.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product3 {
   def unapply[T1, T2, T3](x: Product3[T1, T2, T3]): Option[Product3[T1, T2, T3]] =
     Some(x)
diff --git a/library/src/scala/Product4.scala b/library/src/scala/Product4.scala
index 7b34b570f1f0..cf07122b5ebb 100644
--- a/library/src/scala/Product4.scala
+++ b/library/src/scala/Product4.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product4 {
   def unapply[T1, T2, T3, T4](x: Product4[T1, T2, T3, T4]): Option[Product4[T1, T2, T3, T4]] =
     Some(x)
diff --git a/library/src/scala/Product5.scala b/library/src/scala/Product5.scala
index 769e2f0b22d3..5d16eb779ec7 100644
--- a/library/src/scala/Product5.scala
+++ b/library/src/scala/Product5.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product5 {
   def unapply[T1, T2, T3, T4, T5](x: Product5[T1, T2, T3, T4, T5]): Option[Product5[T1, T2, T3, T4, T5]] =
     Some(x)
diff --git a/library/src/scala/Product6.scala b/library/src/scala/Product6.scala
index aff1fbb92e46..216740eb094c 100644
--- a/library/src/scala/Product6.scala
+++ b/library/src/scala/Product6.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product6 {
   def unapply[T1, T2, T3, T4, T5, T6](x: Product6[T1, T2, T3, T4, T5, T6]): Option[Product6[T1, T2, T3, T4, T5, T6]] =
     Some(x)
diff --git a/library/src/scala/Product7.scala b/library/src/scala/Product7.scala
index 7aef56fc53a6..03ed87b02600 100644
--- a/library/src/scala/Product7.scala
+++ b/library/src/scala/Product7.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product7 {
   def unapply[T1, T2, T3, T4, T5, T6, T7](x: Product7[T1, T2, T3, T4, T5, T6, T7]): Option[Product7[T1, T2, T3, T4, T5, T6, T7]] =
     Some(x)
diff --git a/library/src/scala/Product8.scala b/library/src/scala/Product8.scala
index f8604b887358..0c83e42413b8 100644
--- a/library/src/scala/Product8.scala
+++ b/library/src/scala/Product8.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product8 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8](x: Product8[T1, T2, T3, T4, T5, T6, T7, T8]): Option[Product8[T1, T2, T3, T4, T5, T6, T7, T8]] =
     Some(x)
diff --git a/library/src/scala/Product9.scala b/library/src/scala/Product9.scala
index 6731142a015b..73e3904756ce 100644
--- a/library/src/scala/Product9.scala
+++ b/library/src/scala/Product9.scala
@@ -14,6 +14,8 @@
 
 package scala
 
+import scala.language.`2`
+
 object Product9 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9](x: Product9[T1, T2, T3, T4, T5, T6, T7, T8, T9]): Option[Product9[T1, T2, T3, T4, T5, T6, T7, T8, T9]] =
     Some(x)
diff --git a/library/src/scala/Proxy.scala b/library/src/scala/Proxy.scala
index 8da03133e3cd..95bc28d65b37 100644
--- a/library/src/scala/Proxy.scala
+++ b/library/src/scala/Proxy.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** This class implements a simple proxy that forwards all calls to
  *  the public, non-final methods defined in class `Any` to another
  *  object self.  Those methods are:
diff --git a/library/src/scala/SerialVersionUID.scala b/library/src/scala/SerialVersionUID.scala
index 0c85b2591247..83863b0f8ade 100644
--- a/library/src/scala/SerialVersionUID.scala
+++ b/library/src/scala/SerialVersionUID.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /**
   * Annotation for specifying the `serialVersionUID` field of a (serializable) class.
   *
diff --git a/library/src/scala/Short.scala b/library/src/scala/Short.scala
index 4a56d71d0733..e238edf04786 100644
--- a/library/src/scala/Short.scala
+++ b/library/src/scala/Short.scala
@@ -16,6 +16,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** `Short`, a 16-bit signed integer (equivalent to Java's `short` primitive type) is a
  *  subtype of [[scala.AnyVal]]. Instances of `Short` are not
  *  represented by an object in the underlying runtime system.
diff --git a/library/src/scala/Specializable.scala b/library/src/scala/Specializable.scala
index 54fb59dba83e..e080e56852bd 100644
--- a/library/src/scala/Specializable.scala
+++ b/library/src/scala/Specializable.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** A common supertype for companions of specializable types.
  *  Should not be extended in user code.
  */
diff --git a/library/src/scala/StringContext.scala b/library/src/scala/StringContext.scala
index ec5c49a2349e..9a245094de32 100644
--- a/library/src/scala/StringContext.scala
+++ b/library/src/scala/StringContext.scala
@@ -12,6 +12,7 @@
 
 package scala
 
+import scala.language.`2`
 import java.lang.{ StringBuilder => JLSBuilder }
 import scala.annotation.tailrec
 import scala.collection.mutable.ArrayBuilder
diff --git a/library/src/scala/Symbol.scala b/library/src/scala/Symbol.scala
index 36a99c5e4e6e..29a95a4e3440 100644
--- a/library/src/scala/Symbol.scala
+++ b/library/src/scala/Symbol.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** This class provides a simple way to get unique objects for equal strings.
  *  Since symbols are interned, they can be compared using reference equality.
  */
diff --git a/library/src/scala/Tuple1.scala b/library/src/scala/Tuple1.scala
index 6af3d3582b14..dfc700dde763 100644
--- a/library/src/scala/Tuple1.scala
+++ b/library/src/scala/Tuple1.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 1 elements; the canonical representation of a [[scala.Product1]].
  *
diff --git a/library/src/scala/Tuple10.scala b/library/src/scala/Tuple10.scala
index 63fa78016769..cf6b6137f886 100644
--- a/library/src/scala/Tuple10.scala
+++ b/library/src/scala/Tuple10.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 10 elements; the canonical representation of a [[scala.Product10]].
  *
diff --git a/library/src/scala/Tuple11.scala b/library/src/scala/Tuple11.scala
index 3cdf35e84b8c..3af8245a9499 100644
--- a/library/src/scala/Tuple11.scala
+++ b/library/src/scala/Tuple11.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 11 elements; the canonical representation of a [[scala.Product11]].
  *
diff --git a/library/src/scala/Tuple12.scala b/library/src/scala/Tuple12.scala
index b27538f446c2..e910f13fac9b 100644
--- a/library/src/scala/Tuple12.scala
+++ b/library/src/scala/Tuple12.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 12 elements; the canonical representation of a [[scala.Product12]].
  *
diff --git a/library/src/scala/Tuple13.scala b/library/src/scala/Tuple13.scala
index 84f2f3cecc28..16c532ea714e 100644
--- a/library/src/scala/Tuple13.scala
+++ b/library/src/scala/Tuple13.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 13 elements; the canonical representation of a [[scala.Product13]].
  *
diff --git a/library/src/scala/Tuple14.scala b/library/src/scala/Tuple14.scala
index 08cd54c0cb82..7c58dd7f39d5 100644
--- a/library/src/scala/Tuple14.scala
+++ b/library/src/scala/Tuple14.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 14 elements; the canonical representation of a [[scala.Product14]].
  *
diff --git a/library/src/scala/Tuple15.scala b/library/src/scala/Tuple15.scala
index b4a932352092..948259ce17d1 100644
--- a/library/src/scala/Tuple15.scala
+++ b/library/src/scala/Tuple15.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 15 elements; the canonical representation of a [[scala.Product15]].
  *
diff --git a/library/src/scala/Tuple16.scala b/library/src/scala/Tuple16.scala
index 417fa3aff002..d10c3231bbc5 100644
--- a/library/src/scala/Tuple16.scala
+++ b/library/src/scala/Tuple16.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 16 elements; the canonical representation of a [[scala.Product16]].
  *
diff --git a/library/src/scala/Tuple17.scala b/library/src/scala/Tuple17.scala
index e7d63a81d1e9..d41ff3292f93 100644
--- a/library/src/scala/Tuple17.scala
+++ b/library/src/scala/Tuple17.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 17 elements; the canonical representation of a [[scala.Product17]].
  *
diff --git a/library/src/scala/Tuple18.scala b/library/src/scala/Tuple18.scala
index 86875130951a..5cc5a43c5a12 100644
--- a/library/src/scala/Tuple18.scala
+++ b/library/src/scala/Tuple18.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 18 elements; the canonical representation of a [[scala.Product18]].
  *
diff --git a/library/src/scala/Tuple19.scala b/library/src/scala/Tuple19.scala
index e3826ddd3073..2838598519e3 100644
--- a/library/src/scala/Tuple19.scala
+++ b/library/src/scala/Tuple19.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 19 elements; the canonical representation of a [[scala.Product19]].
  *
diff --git a/library/src/scala/Tuple2.scala b/library/src/scala/Tuple2.scala
index 3429ed7dea62..5be82df849e4 100644
--- a/library/src/scala/Tuple2.scala
+++ b/library/src/scala/Tuple2.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 2 elements; the canonical representation of a [[scala.Product2]].
  *
diff --git a/library/src/scala/Tuple20.scala b/library/src/scala/Tuple20.scala
index 1d4826b94841..e7250fc91f43 100644
--- a/library/src/scala/Tuple20.scala
+++ b/library/src/scala/Tuple20.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 20 elements; the canonical representation of a [[scala.Product20]].
  *
diff --git a/library/src/scala/Tuple21.scala b/library/src/scala/Tuple21.scala
index 01503f0e9362..fd4eb7a5b8dd 100644
--- a/library/src/scala/Tuple21.scala
+++ b/library/src/scala/Tuple21.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 21 elements; the canonical representation of a [[scala.Product21]].
  *
diff --git a/library/src/scala/Tuple22.scala b/library/src/scala/Tuple22.scala
index 3f84e75a5dc6..a417bc9cf0c3 100644
--- a/library/src/scala/Tuple22.scala
+++ b/library/src/scala/Tuple22.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 22 elements; the canonical representation of a [[scala.Product22]].
  *
diff --git a/library/src/scala/Tuple3.scala b/library/src/scala/Tuple3.scala
index b053d9c4c6b2..fcb0cdb7989b 100644
--- a/library/src/scala/Tuple3.scala
+++ b/library/src/scala/Tuple3.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 3 elements; the canonical representation of a [[scala.Product3]].
  *
diff --git a/library/src/scala/Tuple4.scala b/library/src/scala/Tuple4.scala
index 29970f510398..a36d1b14519b 100644
--- a/library/src/scala/Tuple4.scala
+++ b/library/src/scala/Tuple4.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 4 elements; the canonical representation of a [[scala.Product4]].
  *
diff --git a/library/src/scala/Tuple5.scala b/library/src/scala/Tuple5.scala
index b6dbd2ea6cd4..da3315535eda 100644
--- a/library/src/scala/Tuple5.scala
+++ b/library/src/scala/Tuple5.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 5 elements; the canonical representation of a [[scala.Product5]].
  *
diff --git a/library/src/scala/Tuple6.scala b/library/src/scala/Tuple6.scala
index 834d81a43e84..19e34ff9937e 100644
--- a/library/src/scala/Tuple6.scala
+++ b/library/src/scala/Tuple6.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 6 elements; the canonical representation of a [[scala.Product6]].
  *
diff --git a/library/src/scala/Tuple7.scala b/library/src/scala/Tuple7.scala
index d6e86752addd..398faa435d62 100644
--- a/library/src/scala/Tuple7.scala
+++ b/library/src/scala/Tuple7.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 7 elements; the canonical representation of a [[scala.Product7]].
  *
diff --git a/library/src/scala/Tuple8.scala b/library/src/scala/Tuple8.scala
index 035d44e5330e..0c3e569de884 100644
--- a/library/src/scala/Tuple8.scala
+++ b/library/src/scala/Tuple8.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 8 elements; the canonical representation of a [[scala.Product8]].
  *
diff --git a/library/src/scala/Tuple9.scala b/library/src/scala/Tuple9.scala
index 50869e2c9b22..b52971dd7a78 100644
--- a/library/src/scala/Tuple9.scala
+++ b/library/src/scala/Tuple9.scala
@@ -14,6 +14,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** A tuple of 9 elements; the canonical representation of a [[scala.Product9]].
  *
diff --git a/library/src/scala/UninitializedError.scala b/library/src/scala/UninitializedError.scala
index 84332c9a9d3e..247c83124d04 100644
--- a/library/src/scala/UninitializedError.scala
+++ b/library/src/scala/UninitializedError.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** This class represents uninitialized variable/value errors.
  */
 // TODO: remove
diff --git a/library/src/scala/UninitializedFieldError.scala b/library/src/scala/UninitializedFieldError.scala
index d516abb68936..c225dca83311 100644
--- a/library/src/scala/UninitializedFieldError.scala
+++ b/library/src/scala/UninitializedFieldError.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** This class implements errors which are thrown whenever a
  *  field is used before it has been initialized.
  *
diff --git a/library/src/scala/Unit.scala b/library/src/scala/Unit.scala
index 66fde8c72038..c3236fd7522d 100644
--- a/library/src/scala/Unit.scala
+++ b/library/src/scala/Unit.scala
@@ -16,6 +16,7 @@
 
 package scala
 
+import scala.language.`2`
 
 /** `Unit` is a subtype of [[scala.AnyVal]]. There is only one value of type
  *  `Unit`, `()`, and it is not represented by any object in the underlying
diff --git a/library/src/scala/ValueOf.scala b/library/src/scala/ValueOf.scala
index 30d5f7ff40c7..bfc5a0d98f84 100644
--- a/library/src/scala/ValueOf.scala
+++ b/library/src/scala/ValueOf.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /**
  * `ValueOf[T]` provides the unique value of the type `T` where `T` is a type which has a
  * single inhabitant. Eligible types are singleton types of the form `stablePath.type`,
diff --git a/library/src/scala/deprecated.scala b/library/src/scala/deprecated.scala
index bb1ded88437c..377ff35f9a7a 100644
--- a/library/src/scala/deprecated.scala
+++ b/library/src/scala/deprecated.scala
@@ -12,6 +12,7 @@
 
 package scala
 
+import scala.language.`2`
 import scala.annotation.meta._
 
 /** An annotation that designates that a definition is deprecated.
diff --git a/library/src/scala/deprecatedInheritance.scala b/library/src/scala/deprecatedInheritance.scala
index f95b3ef100a0..2e534253ea5f 100644
--- a/library/src/scala/deprecatedInheritance.scala
+++ b/library/src/scala/deprecatedInheritance.scala
@@ -12,6 +12,7 @@
 
 package scala
 
+import scala.language.`2`
 import scala.annotation.meta._
 
 /** An annotation that designates that inheriting from a class is deprecated.
diff --git a/library/src/scala/deprecatedName.scala b/library/src/scala/deprecatedName.scala
index 1a8341b8d498..cbc2c2232aa7 100644
--- a/library/src/scala/deprecatedName.scala
+++ b/library/src/scala/deprecatedName.scala
@@ -12,6 +12,7 @@
 
 package scala
 
+import scala.language.`2`
 import scala.annotation.meta._
 
 /** An annotation that designates that the name of a parameter is deprecated.
diff --git a/library/src/scala/deprecatedOverriding.scala b/library/src/scala/deprecatedOverriding.scala
index 0268bee15a10..b54dfbaedf74 100644
--- a/library/src/scala/deprecatedOverriding.scala
+++ b/library/src/scala/deprecatedOverriding.scala
@@ -12,6 +12,7 @@
 
 package scala
 
+import scala.language.`2`
 import scala.annotation.meta._
 
 /** An annotation that designates that overriding a member is deprecated.
diff --git a/library/src/scala/inline.scala b/library/src/scala/inline.scala
index d7d7b55d8d3c..de2f8a3354de 100644
--- a/library/src/scala/inline.scala
+++ b/library/src/scala/inline.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /**
  * An annotation for methods that the optimizer should inline.
  *
diff --git a/library/src/scala/language.scala b/library/src/scala/language.scala
index d0359b8ac55f..4e4c12572f07 100644
--- a/library/src/scala/language.scala
+++ b/library/src/scala/language.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /**
  *  The `scala.language` object controls the language features available to the programmer, as proposed in the
  *  [[https://docs.google.com/document/d/1nlkvpoIRkx7at1qJEZafJwthZ3GeIklTFhqmXMvTX9Q/edit '''SIP-18 document''']].
diff --git a/library/src/scala/languageFeature.scala b/library/src/scala/languageFeature.scala
index 236774c990ba..663f7cf29170 100644
--- a/library/src/scala/languageFeature.scala
+++ b/library/src/scala/languageFeature.scala
@@ -12,6 +12,7 @@
 
 package scala
 
+import scala.language.`2`
 import scala.annotation.meta
 
 object languageFeature {
diff --git a/library/src/scala/native.scala b/library/src/scala/native.scala
index 6a453d1809d1..a55f258ef3b3 100644
--- a/library/src/scala/native.scala
+++ b/library/src/scala/native.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** Marker for native methods.
   *
   * {{{
diff --git a/library/src/scala/noinline.scala b/library/src/scala/noinline.scala
index eede8d5051f2..c060e7ebcfe3 100644
--- a/library/src/scala/noinline.scala
+++ b/library/src/scala/noinline.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /**
  * An annotation for methods that the optimizer should not inline.
  *
diff --git a/library/src/scala/package.scala b/library/src/scala/package.scala
index f84dcfd85a73..e0196636e430 100644
--- a/library/src/scala/package.scala
+++ b/library/src/scala/package.scala
@@ -10,6 +10,7 @@
  * additional information regarding copyright ownership.
  */
 
+import scala.language.`2`
 import scala.annotation.migration
 
 /**
diff --git a/library/src/scala/specialized.scala b/library/src/scala/specialized.scala
index c099612e1370..6b79cb4a1ee1 100644
--- a/library/src/scala/specialized.scala
+++ b/library/src/scala/specialized.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 import Specializable._
 
 /** Annotate type parameters on which code should be automatically
diff --git a/library/src/scala/throws.scala b/library/src/scala/throws.scala
index d5391ce9242c..f4febf06b009 100644
--- a/library/src/scala/throws.scala
+++ b/library/src/scala/throws.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /**
  * Annotation for specifying the exceptions thrown by a method.
  * For example:
diff --git a/library/src/scala/transient.scala b/library/src/scala/transient.scala
index b40ce540547a..74297b1dace0 100644
--- a/library/src/scala/transient.scala
+++ b/library/src/scala/transient.scala
@@ -12,6 +12,7 @@
 
 package scala
 
+import scala.language.`2`
 import scala.annotation.meta._
 
 @field
diff --git a/library/src/scala/typeConstraints.scala b/library/src/scala/typeConstraints.scala
index f17205e122cf..6b1595eb87e8 100644
--- a/library/src/scala/typeConstraints.scala
+++ b/library/src/scala/typeConstraints.scala
@@ -12,6 +12,7 @@
 
 package scala
 
+import scala.language.`2`
 import scala.annotation.implicitNotFound
 
 /** An instance of `A <:< B` witnesses that `A` is a subtype of `B`.
diff --git a/library/src/scala/unchecked.scala b/library/src/scala/unchecked.scala
index 6927db7293e5..cad9d594b76a 100644
--- a/library/src/scala/unchecked.scala
+++ b/library/src/scala/unchecked.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** An annotation to designate that the annotated entity
  *  should not be considered for additional compiler checks.
  *  Specific applications include annotating the subject of
diff --git a/library/src/scala/volatile.scala b/library/src/scala/volatile.scala
index 2f4f3c37e676..9d16a3d3bcbe 100644
--- a/library/src/scala/volatile.scala
+++ b/library/src/scala/volatile.scala
@@ -12,6 +12,7 @@
 
 package scala
 
+import scala.language.`2`
 import scala.annotation.meta._
 
 @field

From c334010961990b00b34fbd33c173323e75fcefd7 Mon Sep 17 00:00:00 2001
From: Hamza Remmal <hamza@remmal.net>
Date: Mon, 5 May 2025 17:21:15 +0200
Subject: [PATCH 02/15] chore: add `scala.language.2` to `scala.util`

---
 library/src/scala/util/ChainingOps.scala              | 1 +
 library/src/scala/util/DynamicVariable.scala          | 1 +
 library/src/scala/util/Either.scala                   | 2 ++
 library/src/scala/util/Properties.scala               | 1 +
 library/src/scala/util/Random.scala                   | 1 +
 library/src/scala/util/Sorting.scala                  | 1 +
 library/src/scala/util/Try.scala                      | 1 +
 library/src/scala/util/Using.scala                    | 1 +
 library/src/scala/util/control/Breaks.scala           | 2 ++
 library/src/scala/util/control/ControlThrowable.scala | 2 ++
 library/src/scala/util/control/Exception.scala        | 1 +
 library/src/scala/util/control/NoStackTrace.scala     | 2 ++
 library/src/scala/util/control/NonFatal.scala         | 2 ++
 library/src/scala/util/control/TailCalls.scala        | 1 +
 library/src/scala/util/hashing/ByteswapHashing.scala  | 5 +----
 library/src/scala/util/hashing/Hashing.scala          | 1 +
 library/src/scala/util/hashing/MurmurHash3.scala      | 1 +
 library/src/scala/util/hashing/package.scala          | 5 +----
 library/src/scala/util/matching/Regex.scala           | 1 +
 library/src/scala/util/package.scala                  | 2 ++
 20 files changed, 26 insertions(+), 8 deletions(-)

diff --git a/library/src/scala/util/ChainingOps.scala b/library/src/scala/util/ChainingOps.scala
index 4bfbdc82a833..c0e743bb0baf 100644
--- a/library/src/scala/util/ChainingOps.scala
+++ b/library/src/scala/util/ChainingOps.scala
@@ -13,6 +13,7 @@
 package scala
 package util
 
+import scala.language.`2`
 import scala.language.implicitConversions
 
 trait ChainingSyntax {
diff --git a/library/src/scala/util/DynamicVariable.scala b/library/src/scala/util/DynamicVariable.scala
index a2568c5a9c69..330ce79e858d 100644
--- a/library/src/scala/util/DynamicVariable.scala
+++ b/library/src/scala/util/DynamicVariable.scala
@@ -13,6 +13,7 @@
 package scala
 package util
 
+import scala.language.`2`
 import java.lang.InheritableThreadLocal
 
 /** `DynamicVariables` provide a binding mechanism where the current
diff --git a/library/src/scala/util/Either.scala b/library/src/scala/util/Either.scala
index 0542decbcf46..dd658cb11d3a 100644
--- a/library/src/scala/util/Either.scala
+++ b/library/src/scala/util/Either.scala
@@ -13,6 +13,8 @@
 package scala
 package util
 
+import scala.language.`2`
+
 /** Represents a value of one of two possible types (a disjoint union).
  *  An instance of `Either` is an instance of either [[scala.util.Left]] or [[scala.util.Right]].
  *
diff --git a/library/src/scala/util/Properties.scala b/library/src/scala/util/Properties.scala
index 24dee49ae951..2a0ea93af850 100644
--- a/library/src/scala/util/Properties.scala
+++ b/library/src/scala/util/Properties.scala
@@ -13,6 +13,7 @@
 package scala
 package util
 
+import scala.language.`2`
 import java.io.{IOException, PrintWriter}
 import java.util.jar.Attributes.{Name => AttributeName}
 import scala.annotation.tailrec
diff --git a/library/src/scala/util/Random.scala b/library/src/scala/util/Random.scala
index 84b44fcc91f5..058a8b69f567 100644
--- a/library/src/scala/util/Random.scala
+++ b/library/src/scala/util/Random.scala
@@ -13,6 +13,7 @@
 package scala
 package util
 
+import scala.language.`2`
 import scala.annotation.{migration, tailrec}
 import scala.collection.mutable.ArrayBuffer
 import scala.collection.BuildFrom
diff --git a/library/src/scala/util/Sorting.scala b/library/src/scala/util/Sorting.scala
index 7e2da2434f82..8fc14337f657 100644
--- a/library/src/scala/util/Sorting.scala
+++ b/library/src/scala/util/Sorting.scala
@@ -13,6 +13,7 @@
 package scala
 package util
 
+import scala.language.`2`
 import scala.reflect.ClassTag
 import scala.math.Ordering
 
diff --git a/library/src/scala/util/Try.scala b/library/src/scala/util/Try.scala
index c17d457c9fe5..ba786d5d9de3 100644
--- a/library/src/scala/util/Try.scala
+++ b/library/src/scala/util/Try.scala
@@ -13,6 +13,7 @@
 package scala
 package util
 
+import scala.language.`2`
 import scala.runtime.Statics
 import scala.util.control.NonFatal
 
diff --git a/library/src/scala/util/Using.scala b/library/src/scala/util/Using.scala
index ebec5e7007ec..65ad66ee79f8 100644
--- a/library/src/scala/util/Using.scala
+++ b/library/src/scala/util/Using.scala
@@ -12,6 +12,7 @@
 
 package scala.util
 
+import scala.language.`2`
 import scala.util.control.{ControlThrowable, NonFatal}
 
 /** A utility for performing automatic resource management. It can be used to perform an
diff --git a/library/src/scala/util/control/Breaks.scala b/library/src/scala/util/control/Breaks.scala
index 888867c0acaf..5f95aa025721 100644
--- a/library/src/scala/util/control/Breaks.scala
+++ b/library/src/scala/util/control/Breaks.scala
@@ -12,6 +12,8 @@
 
 package scala.util.control
 
+import scala.language.`2`
+
 /** Provides the `break` control abstraction.
  *
  *  The `break` method uses a `ControlThrowable` to transfer
diff --git a/library/src/scala/util/control/ControlThrowable.scala b/library/src/scala/util/control/ControlThrowable.scala
index ea5ff549e121..43709925a0d8 100644
--- a/library/src/scala/util/control/ControlThrowable.scala
+++ b/library/src/scala/util/control/ControlThrowable.scala
@@ -12,6 +12,8 @@
 
 package scala.util.control
 
+import scala.language.`2`
+
 /** A parent class for throwable objects intended for flow control.
  *
  *  Instances of `ControlThrowable` should not normally be caught.
diff --git a/library/src/scala/util/control/Exception.scala b/library/src/scala/util/control/Exception.scala
index 181bb22743a7..aaab3881e9cb 100644
--- a/library/src/scala/util/control/Exception.scala
+++ b/library/src/scala/util/control/Exception.scala
@@ -14,6 +14,7 @@ package scala
 package util
 package control
 
+import scala.language.`2`
 import scala.annotation.tailrec
 import scala.reflect.{ClassTag, classTag}
 import scala.language.implicitConversions
diff --git a/library/src/scala/util/control/NoStackTrace.scala b/library/src/scala/util/control/NoStackTrace.scala
index f34fec38180c..adfd3cc63aa6 100644
--- a/library/src/scala/util/control/NoStackTrace.scala
+++ b/library/src/scala/util/control/NoStackTrace.scala
@@ -13,6 +13,8 @@
 package scala
 package util.control
 
+import scala.language.`2`
+
 /** A trait for exceptions which, for efficiency reasons, do not
  *  fill in the stack trace.  Stack trace suppression can be disabled
  *  on a global basis via a system property wrapper in
diff --git a/library/src/scala/util/control/NonFatal.scala b/library/src/scala/util/control/NonFatal.scala
index 80d8812a42ef..12620d25d489 100644
--- a/library/src/scala/util/control/NonFatal.scala
+++ b/library/src/scala/util/control/NonFatal.scala
@@ -13,6 +13,8 @@
 package scala
 package util.control
 
+import scala.language.`2`
+
 /**
  * Extractor of non-fatal Throwables. Will not match fatal errors like `VirtualMachineError`
  * (for example, `OutOfMemoryError` and `StackOverflowError`, subclasses of `VirtualMachineError`), `ThreadDeath`,
diff --git a/library/src/scala/util/control/TailCalls.scala b/library/src/scala/util/control/TailCalls.scala
index 717ea9004f3f..2716c54ed168 100644
--- a/library/src/scala/util/control/TailCalls.scala
+++ b/library/src/scala/util/control/TailCalls.scala
@@ -12,6 +12,7 @@
 
 package scala.util.control
 
+import scala.language.`2`
 import annotation.tailrec
 
 /** Methods exported by this object implement tail calls via trampolining.
diff --git a/library/src/scala/util/hashing/ByteswapHashing.scala b/library/src/scala/util/hashing/ByteswapHashing.scala
index ca96e4d1f4a5..4a6964349c5d 100644
--- a/library/src/scala/util/hashing/ByteswapHashing.scala
+++ b/library/src/scala/util/hashing/ByteswapHashing.scala
@@ -13,10 +13,7 @@
 package scala
 package util.hashing
 
-
-
-
-
+import scala.language.`2`
 
 /** A fast multiplicative hash by Phil Bagwell.
  */
diff --git a/library/src/scala/util/hashing/Hashing.scala b/library/src/scala/util/hashing/Hashing.scala
index 28067cce9992..c326c6df55e6 100644
--- a/library/src/scala/util/hashing/Hashing.scala
+++ b/library/src/scala/util/hashing/Hashing.scala
@@ -13,6 +13,7 @@
 package scala
 package util.hashing
 
+import scala.language.`2`
 import scala.annotation.implicitNotFound
 
 /** `Hashing` is a trait whose instances each represent a strategy for hashing
diff --git a/library/src/scala/util/hashing/MurmurHash3.scala b/library/src/scala/util/hashing/MurmurHash3.scala
index 1fa98e790445..68e3dc977680 100644
--- a/library/src/scala/util/hashing/MurmurHash3.scala
+++ b/library/src/scala/util/hashing/MurmurHash3.scala
@@ -13,6 +13,7 @@
 package scala
 package util.hashing
 
+import scala.language.`2`
 import java.lang.Integer.{ rotateLeft => rotl }
 
 private[hashing] class MurmurHash3 {
diff --git a/library/src/scala/util/hashing/package.scala b/library/src/scala/util/hashing/package.scala
index 530b729e2f81..82f8f8e98069 100644
--- a/library/src/scala/util/hashing/package.scala
+++ b/library/src/scala/util/hashing/package.scala
@@ -13,10 +13,7 @@
 package scala
 package util
 
-
-
-
-
+import scala.language.`2`
 
 package object hashing {
 
diff --git a/library/src/scala/util/matching/Regex.scala b/library/src/scala/util/matching/Regex.scala
index c19bc2a925b1..a9c5c47cef76 100644
--- a/library/src/scala/util/matching/Regex.scala
+++ b/library/src/scala/util/matching/Regex.scala
@@ -26,6 +26,7 @@
  */
 package scala.util.matching
 
+import scala.language.`2`
 import scala.collection.AbstractIterator
 import java.util.regex.{ Pattern, Matcher }
 
diff --git a/library/src/scala/util/package.scala b/library/src/scala/util/package.scala
index 1b8b84dd2bfe..23ec0131e18a 100644
--- a/library/src/scala/util/package.scala
+++ b/library/src/scala/util/package.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 package object util {
   /**
    * Adds chaining methods `tap` and `pipe` to every type. See [[ChainingOps]].

From 5a5b1345608c94c9a1ef4a57e45ee762ac87a665 Mon Sep 17 00:00:00 2001
From: Hamza Remmal <hamza@remmal.net>
Date: Mon, 5 May 2025 17:24:50 +0200
Subject: [PATCH 03/15] chore: add `scala.language.2` to `scala.sys`

---
 library/src/scala/sys/BooleanProp.scala                | 1 +
 library/src/scala/sys/Prop.scala                       | 2 ++
 library/src/scala/sys/PropImpl.scala                   | 1 +
 library/src/scala/sys/ShutdownHookThread.scala         | 2 ++
 library/src/scala/sys/SystemProperties.scala           | 1 +
 library/src/scala/sys/package.scala                    | 1 +
 library/src/scala/sys/process/BasicIO.scala            | 1 +
 library/src/scala/sys/process/Parser.scala             | 1 +
 library/src/scala/sys/process/Process.scala            | 1 +
 library/src/scala/sys/process/ProcessBuilder.scala     | 1 +
 library/src/scala/sys/process/ProcessBuilderImpl.scala | 1 +
 library/src/scala/sys/process/ProcessIO.scala          | 1 +
 library/src/scala/sys/process/ProcessImpl.scala        | 1 +
 library/src/scala/sys/process/ProcessLogger.scala      | 1 +
 library/src/scala/sys/process/package.scala            | 3 +++
 15 files changed, 19 insertions(+)

diff --git a/library/src/scala/sys/BooleanProp.scala b/library/src/scala/sys/BooleanProp.scala
index 70066c070c37..9917241bb322 100644
--- a/library/src/scala/sys/BooleanProp.scala
+++ b/library/src/scala/sys/BooleanProp.scala
@@ -13,6 +13,7 @@
 package scala
 package sys
 
+import scala.language.`2`
 import scala.language.implicitConversions
 
 /** A few additional conveniences for Boolean properties.
diff --git a/library/src/scala/sys/Prop.scala b/library/src/scala/sys/Prop.scala
index 7645e4ac8993..fd0edf55b4bc 100644
--- a/library/src/scala/sys/Prop.scala
+++ b/library/src/scala/sys/Prop.scala
@@ -13,6 +13,8 @@
 package scala
 package sys
 
+import scala.language.`2`
+
 /** A lightweight interface wrapping a property contained in some
  *  unspecified map.  Generally it'll be the system properties but this
  *  is not a requirement.
diff --git a/library/src/scala/sys/PropImpl.scala b/library/src/scala/sys/PropImpl.scala
index 390c5c9c576d..d8d72954f1a4 100644
--- a/library/src/scala/sys/PropImpl.scala
+++ b/library/src/scala/sys/PropImpl.scala
@@ -13,6 +13,7 @@
 package scala
 package sys
 
+import scala.language.`2`
 import scala.collection.mutable
 
 /** The internal implementation of scala.sys.Prop.
diff --git a/library/src/scala/sys/ShutdownHookThread.scala b/library/src/scala/sys/ShutdownHookThread.scala
index d7a8ae5bb3ca..1e526f347a41 100644
--- a/library/src/scala/sys/ShutdownHookThread.scala
+++ b/library/src/scala/sys/ShutdownHookThread.scala
@@ -13,6 +13,8 @@
 package scala
 package sys
 
+import scala.language.`2`
+
 /** A minimal Thread wrapper to enhance shutdown hooks.  It knows
  *  how to unregister itself.
  */
diff --git a/library/src/scala/sys/SystemProperties.scala b/library/src/scala/sys/SystemProperties.scala
index 1f848a73358e..88932e86a810 100644
--- a/library/src/scala/sys/SystemProperties.scala
+++ b/library/src/scala/sys/SystemProperties.scala
@@ -13,6 +13,7 @@
 package scala
 package sys
 
+import scala.language.`2`
 import scala.collection.{mutable, Iterator}
 import scala.jdk.CollectionConverters._
 import java.security.AccessControlException
diff --git a/library/src/scala/sys/package.scala b/library/src/scala/sys/package.scala
index 122f19d12c3a..cad7f6784675 100644
--- a/library/src/scala/sys/package.scala
+++ b/library/src/scala/sys/package.scala
@@ -12,6 +12,7 @@
 
 package scala
 
+import scala.language.`2`
 import scala.collection.immutable.ArraySeq
 import scala.jdk.CollectionConverters._
 
diff --git a/library/src/scala/sys/process/BasicIO.scala b/library/src/scala/sys/process/BasicIO.scala
index a242fe312bbf..276d7901c937 100644
--- a/library/src/scala/sys/process/BasicIO.scala
+++ b/library/src/scala/sys/process/BasicIO.scala
@@ -14,6 +14,7 @@ package scala
 package sys
 package process
 
+import scala.language.`2`
 import processInternal._
 import java.io.{ BufferedReader, InputStreamReader, FilterInputStream, FilterOutputStream }
 import java.util.concurrent.LinkedBlockingQueue
diff --git a/library/src/scala/sys/process/Parser.scala b/library/src/scala/sys/process/Parser.scala
index e9a25a0f9366..9f67feba3f87 100644
--- a/library/src/scala/sys/process/Parser.scala
+++ b/library/src/scala/sys/process/Parser.scala
@@ -12,6 +12,7 @@
 
 package scala.sys.process
 
+import scala.language.`2`
 import scala.annotation.tailrec
 
 /** A simple enough command line parser using shell quote conventions.
diff --git a/library/src/scala/sys/process/Process.scala b/library/src/scala/sys/process/Process.scala
index 531971125e6d..9393faeebc6f 100644
--- a/library/src/scala/sys/process/Process.scala
+++ b/library/src/scala/sys/process/Process.scala
@@ -14,6 +14,7 @@ package scala
 package sys
 package process
 
+import scala.language.`2`
 import processInternal._
 import ProcessBuilder._
 import scala.language.implicitConversions
diff --git a/library/src/scala/sys/process/ProcessBuilder.scala b/library/src/scala/sys/process/ProcessBuilder.scala
index bf1c1507707d..c7f9c9175d61 100644
--- a/library/src/scala/sys/process/ProcessBuilder.scala
+++ b/library/src/scala/sys/process/ProcessBuilder.scala
@@ -14,6 +14,7 @@ package scala
 package sys
 package process
 
+import scala.language.`2`
 import processInternal._
 import ProcessBuilder.{Sink, Source}
 
diff --git a/library/src/scala/sys/process/ProcessBuilderImpl.scala b/library/src/scala/sys/process/ProcessBuilderImpl.scala
index 186ad134a218..f718bfafdb7f 100644
--- a/library/src/scala/sys/process/ProcessBuilderImpl.scala
+++ b/library/src/scala/sys/process/ProcessBuilderImpl.scala
@@ -14,6 +14,7 @@ package scala
 package sys
 package process
 
+import scala.language.`2`
 import processInternal._
 import Process._
 import BasicIO.{LazilyListed, Streamed, Uncloseable}
diff --git a/library/src/scala/sys/process/ProcessIO.scala b/library/src/scala/sys/process/ProcessIO.scala
index a4898d2c9b1e..a649b279f594 100644
--- a/library/src/scala/sys/process/ProcessIO.scala
+++ b/library/src/scala/sys/process/ProcessIO.scala
@@ -14,6 +14,7 @@ package scala
 package sys
 package process
 
+import scala.language.`2`
 import processInternal._
 
 /** This class is used to control the I/O of every
diff --git a/library/src/scala/sys/process/ProcessImpl.scala b/library/src/scala/sys/process/ProcessImpl.scala
index 3ed0c5766412..e1eb8b9efe50 100644
--- a/library/src/scala/sys/process/ProcessImpl.scala
+++ b/library/src/scala/sys/process/ProcessImpl.scala
@@ -12,6 +12,7 @@
 
 package scala.sys.process
 
+import scala.language.`2`
 import processInternal._
 
 import java.util.concurrent.LinkedBlockingQueue
diff --git a/library/src/scala/sys/process/ProcessLogger.scala b/library/src/scala/sys/process/ProcessLogger.scala
index e048ca5c9446..6abea86fa85f 100644
--- a/library/src/scala/sys/process/ProcessLogger.scala
+++ b/library/src/scala/sys/process/ProcessLogger.scala
@@ -14,6 +14,7 @@ package scala
 package sys
 package process
 
+import scala.language.`2`
 import java.io._
 
 /** Encapsulates the output and error streams of a running process. This is used
diff --git a/library/src/scala/sys/process/package.scala b/library/src/scala/sys/process/package.scala
index 11e6640d8e21..38f98c609bbe 100644
--- a/library/src/scala/sys/process/package.scala
+++ b/library/src/scala/sys/process/package.scala
@@ -16,6 +16,9 @@
 //
 package scala.sys
 package process
+
+import scala.language.`2`
+
   /** This package handles the execution of external processes.  The contents of
     * this package can be divided in three groups, according to their
     * responsibilities:

From 75c56990203db03a95b9b360857d168845c1cdb8 Mon Sep 17 00:00:00 2001
From: Hamza Remmal <hamza@remmal.net>
Date: Mon, 5 May 2025 17:27:07 +0200
Subject: [PATCH 04/15] chore: add `scala.language.2` to `scala.reflect`

---
 library/src/scala/reflect/ClassManifestDeprecatedApis.scala | 1 +
 library/src/scala/reflect/ClassTag.scala                    | 1 +
 library/src/scala/reflect/Manifest.scala                    | 1 +
 library/src/scala/reflect/NameTransformer.scala             | 2 ++
 library/src/scala/reflect/NoManifest.scala                  | 2 ++
 library/src/scala/reflect/OptManifest.scala                 | 2 ++
 library/src/scala/reflect/macros/internal/macroImpl.scala   | 2 ++
 library/src/scala/reflect/package.scala                     | 2 ++
 8 files changed, 13 insertions(+)

diff --git a/library/src/scala/reflect/ClassManifestDeprecatedApis.scala b/library/src/scala/reflect/ClassManifestDeprecatedApis.scala
index cc8d0a457c2a..cb8b6b3956e7 100644
--- a/library/src/scala/reflect/ClassManifestDeprecatedApis.scala
+++ b/library/src/scala/reflect/ClassManifestDeprecatedApis.scala
@@ -13,6 +13,7 @@
 package scala
 package reflect
 
+import scala.language.`2`
 import scala.collection.mutable.{ArrayBuilder, ArraySeq}
 import java.lang.{Class => jClass}
 
diff --git a/library/src/scala/reflect/ClassTag.scala b/library/src/scala/reflect/ClassTag.scala
index 5ebd3f1506e1..deb87f5d72cd 100644
--- a/library/src/scala/reflect/ClassTag.scala
+++ b/library/src/scala/reflect/ClassTag.scala
@@ -13,6 +13,7 @@
 package scala
 package reflect
 
+import scala.language.`2`
 import java.lang.{Class => jClass}
 import java.lang.ref.{WeakReference => jWeakReference}
 import scala.annotation.{implicitNotFound, nowarn}
diff --git a/library/src/scala/reflect/Manifest.scala b/library/src/scala/reflect/Manifest.scala
index 9f382fdd800e..4c1b8964ab3f 100644
--- a/library/src/scala/reflect/Manifest.scala
+++ b/library/src/scala/reflect/Manifest.scala
@@ -13,6 +13,7 @@
 package scala
 package reflect
 
+import scala.language.`2`
 import scala.annotation.{implicitNotFound, nowarn}
 import scala.collection.mutable.{ArrayBuilder, ArraySeq}
 
diff --git a/library/src/scala/reflect/NameTransformer.scala b/library/src/scala/reflect/NameTransformer.scala
index 4980ed5bd6b4..54df171f0a5c 100644
--- a/library/src/scala/reflect/NameTransformer.scala
+++ b/library/src/scala/reflect/NameTransformer.scala
@@ -13,6 +13,8 @@
 package scala
 package reflect
 
+import scala.language.`2`
+
 /** Provides functions to encode and decode Scala symbolic names.
  *  Also provides some constants.
  */
diff --git a/library/src/scala/reflect/NoManifest.scala b/library/src/scala/reflect/NoManifest.scala
index 819ffede46d3..4a333af8448c 100644
--- a/library/src/scala/reflect/NoManifest.scala
+++ b/library/src/scala/reflect/NoManifest.scala
@@ -13,6 +13,8 @@
 package scala
 package reflect
 
+import scala.language.`2`
+
 /** One of the branches of an [[scala.reflect.OptManifest]].
   */
 // TODO undeprecated until Scala reflection becomes non-experimental
diff --git a/library/src/scala/reflect/OptManifest.scala b/library/src/scala/reflect/OptManifest.scala
index f3b3c3117236..892a1fd46e52 100644
--- a/library/src/scala/reflect/OptManifest.scala
+++ b/library/src/scala/reflect/OptManifest.scala
@@ -13,6 +13,8 @@
 package scala
 package reflect
 
+import scala.language.`2`
+
 /** A `OptManifest[T]` is an optional [[scala.reflect.Manifest]].
  *
  *  It is either a `Manifest` or the value `NoManifest`.
diff --git a/library/src/scala/reflect/macros/internal/macroImpl.scala b/library/src/scala/reflect/macros/internal/macroImpl.scala
index c26426a079f2..b6f556c7f1b0 100644
--- a/library/src/scala/reflect/macros/internal/macroImpl.scala
+++ b/library/src/scala/reflect/macros/internal/macroImpl.scala
@@ -13,6 +13,8 @@
 package scala.reflect.macros
 package internal
 
+import scala.language.`2`
+
 /** Links macro definitions with their implementation.
  *  This is necessary to preserve macro def -> macro impl links between compilation runs.
  *
diff --git a/library/src/scala/reflect/package.scala b/library/src/scala/reflect/package.scala
index caf79866c71e..92397ab300a1 100644
--- a/library/src/scala/reflect/package.scala
+++ b/library/src/scala/reflect/package.scala
@@ -15,6 +15,8 @@ package scala
 import java.lang.reflect.{AccessibleObject => jAccessibleObject}
 import scala.annotation.nowarn
 
+import scala.language.`2`
+
 package object reflect {
 
   // in the new scheme of things ClassManifests are aliased to ClassTags

From ebb21c9799422dc5b88f7abdd8a5ef050134ff6a Mon Sep 17 00:00:00 2001
From: Hamza Remmal <hamza@remmal.net>
Date: Mon, 5 May 2025 17:28:32 +0200
Subject: [PATCH 05/15] chore: add `scala.language.2` to files in `scala.ref`

---
 library/src/scala/ref/PhantomReference.scala | 2 ++
 library/src/scala/ref/Reference.scala        | 2 ++
 library/src/scala/ref/ReferenceQueue.scala   | 2 ++
 library/src/scala/ref/ReferenceWrapper.scala | 1 +
 library/src/scala/ref/SoftReference.scala    | 2 ++
 library/src/scala/ref/WeakReference.scala    | 2 ++
 6 files changed, 11 insertions(+)

diff --git a/library/src/scala/ref/PhantomReference.scala b/library/src/scala/ref/PhantomReference.scala
index 0790f539d03d..ab3add3380c5 100644
--- a/library/src/scala/ref/PhantomReference.scala
+++ b/library/src/scala/ref/PhantomReference.scala
@@ -12,6 +12,8 @@
 
 package scala.ref
 
+import scala.language.`2`
+
 class PhantomReference[+T <: AnyRef](value: T, queue: ReferenceQueue[T]) extends ReferenceWrapper[T] {
   val underlying: java.lang.ref.PhantomReference[_ <: T] =
     new PhantomReferenceWithWrapper[T](value, queue, this)
diff --git a/library/src/scala/ref/Reference.scala b/library/src/scala/ref/Reference.scala
index 02e673fa4184..c13c9488895b 100644
--- a/library/src/scala/ref/Reference.scala
+++ b/library/src/scala/ref/Reference.scala
@@ -12,6 +12,8 @@
 
 package scala.ref
 
+import scala.language.`2`
+
 /**
  * @see `java.lang.ref.Reference`
  */
diff --git a/library/src/scala/ref/ReferenceQueue.scala b/library/src/scala/ref/ReferenceQueue.scala
index 70743708c732..1329edb6b6cd 100644
--- a/library/src/scala/ref/ReferenceQueue.scala
+++ b/library/src/scala/ref/ReferenceQueue.scala
@@ -12,6 +12,8 @@
 
 package scala.ref
 
+import scala.language.`2`
+
 class ReferenceQueue[+T <: AnyRef] {
 
   private[ref] val underlying: java.lang.ref.ReferenceQueue[_ <: T] = new java.lang.ref.ReferenceQueue[T]
diff --git a/library/src/scala/ref/ReferenceWrapper.scala b/library/src/scala/ref/ReferenceWrapper.scala
index 4e681ed18570..d726a6d6fe28 100644
--- a/library/src/scala/ref/ReferenceWrapper.scala
+++ b/library/src/scala/ref/ReferenceWrapper.scala
@@ -12,6 +12,7 @@
 
 package scala.ref
 
+import scala.language.`2`
 import scala.annotation.nowarn
 
 @nowarn("cat=deprecation")
diff --git a/library/src/scala/ref/SoftReference.scala b/library/src/scala/ref/SoftReference.scala
index 859eef5e7fef..0bb94fba0911 100644
--- a/library/src/scala/ref/SoftReference.scala
+++ b/library/src/scala/ref/SoftReference.scala
@@ -12,6 +12,8 @@
 
 package scala.ref
 
+import scala.language.`2`
+
 class SoftReference[+T <: AnyRef](value : T, queue : ReferenceQueue[T]) extends ReferenceWrapper[T] {
   def this(value : T) = this(value, null)
 
diff --git a/library/src/scala/ref/WeakReference.scala b/library/src/scala/ref/WeakReference.scala
index 5ca06063590b..ddb2d51d412c 100644
--- a/library/src/scala/ref/WeakReference.scala
+++ b/library/src/scala/ref/WeakReference.scala
@@ -12,6 +12,8 @@
 
 package scala.ref
 
+import scala.language.`2`
+
 /**
  *  A wrapper class for java.lang.ref.WeakReference
  *  The new functionality is (1) results are Option values, instead of using null.

From 3f8b7419cf927210a51e89562cd02fcd01773e01 Mon Sep 17 00:00:00 2001
From: Hamza Remmal <hamza@remmal.net>
Date: Mon, 5 May 2025 17:37:33 +0200
Subject: [PATCH 06/15] chore: add `scala.language.2` to files in `scala.math`

---
 library/src/scala/math/BigDecimal.scala              | 1 +
 library/src/scala/math/BigInt.scala                  | 1 +
 library/src/scala/math/Equiv.scala                   | 1 +
 library/src/scala/math/Fractional.scala              | 1 +
 library/src/scala/math/Integral.scala                | 1 +
 library/src/scala/math/Numeric.scala                 | 1 +
 library/src/scala/math/Ordered.scala                 | 1 +
 library/src/scala/math/Ordering.scala                | 1 +
 library/src/scala/math/PartialOrdering.scala         | 2 ++
 library/src/scala/math/PartiallyOrdered.scala        | 2 ++
 library/src/scala/math/ScalaNumericConversions.scala | 2 ++
 library/src/scala/math/package.scala                 | 2 ++
 12 files changed, 16 insertions(+)

diff --git a/library/src/scala/math/BigDecimal.scala b/library/src/scala/math/BigDecimal.scala
index e70cdbab41e4..b62a5d842e73 100644
--- a/library/src/scala/math/BigDecimal.scala
+++ b/library/src/scala/math/BigDecimal.scala
@@ -13,6 +13,7 @@
 package scala
 package math
 
+import scala.language.`2`
 import scala.language.implicitConversions
 
 import java.math.{
diff --git a/library/src/scala/math/BigInt.scala b/library/src/scala/math/BigInt.scala
index 9a17ee02a51a..33beacf5a413 100644
--- a/library/src/scala/math/BigInt.scala
+++ b/library/src/scala/math/BigInt.scala
@@ -15,6 +15,7 @@ package math
 
 import java.math.BigInteger
 
+import scala.language.`2`
 import scala.annotation.nowarn
 import scala.language.implicitConversions
 import scala.collection.immutable.NumericRange
diff --git a/library/src/scala/math/Equiv.scala b/library/src/scala/math/Equiv.scala
index b5d01b362901..4f3952a46596 100644
--- a/library/src/scala/math/Equiv.scala
+++ b/library/src/scala/math/Equiv.scala
@@ -13,6 +13,7 @@
 package scala
 package math
 
+import scala.language.`2`
 import java.util.Comparator
 import scala.annotation.migration
 
diff --git a/library/src/scala/math/Fractional.scala b/library/src/scala/math/Fractional.scala
index 2066cc65d8ac..9bcdd07068b6 100644
--- a/library/src/scala/math/Fractional.scala
+++ b/library/src/scala/math/Fractional.scala
@@ -13,6 +13,7 @@
 package scala
 package math
 
+import scala.language.`2`
 import scala.language.implicitConversions
 
 trait Fractional[T] extends Numeric[T] {
diff --git a/library/src/scala/math/Integral.scala b/library/src/scala/math/Integral.scala
index d5dd189d64fe..dfd9dcef4d93 100644
--- a/library/src/scala/math/Integral.scala
+++ b/library/src/scala/math/Integral.scala
@@ -13,6 +13,7 @@
 package scala
 package math
 
+import scala.language.`2`
 import scala.language.implicitConversions
 
 trait Integral[T] extends Numeric[T] {
diff --git a/library/src/scala/math/Numeric.scala b/library/src/scala/math/Numeric.scala
index 84028f13f833..8a5b71e4ef9f 100644
--- a/library/src/scala/math/Numeric.scala
+++ b/library/src/scala/math/Numeric.scala
@@ -13,6 +13,7 @@
 package scala
 package math
 
+import scala.language.`2`
 import scala.collection.StringParsers
 import scala.language.implicitConversions
 import scala.util.Try
diff --git a/library/src/scala/math/Ordered.scala b/library/src/scala/math/Ordered.scala
index fe3ed90453e0..887b5d365566 100644
--- a/library/src/scala/math/Ordered.scala
+++ b/library/src/scala/math/Ordered.scala
@@ -13,6 +13,7 @@
 package scala
 package math
 
+import scala.language.`2`
 import scala.language.implicitConversions
 
 /** A trait for data that have a single, natural ordering.  See
diff --git a/library/src/scala/math/Ordering.scala b/library/src/scala/math/Ordering.scala
index 5a34f1fe91a9..bf5552137fc0 100644
--- a/library/src/scala/math/Ordering.scala
+++ b/library/src/scala/math/Ordering.scala
@@ -13,6 +13,7 @@
 package scala
 package math
 
+import scala.language.`2`
 import java.util.Comparator
 
 import scala.language.implicitConversions
diff --git a/library/src/scala/math/PartialOrdering.scala b/library/src/scala/math/PartialOrdering.scala
index e8ea9d355344..da922e1e2caf 100644
--- a/library/src/scala/math/PartialOrdering.scala
+++ b/library/src/scala/math/PartialOrdering.scala
@@ -13,6 +13,8 @@
 package scala
 package math
 
+import scala.language.`2`
+
 /** A trait for representing partial orderings.  It is important to
  *  distinguish between a type that has a partial order and a representation
  *  of partial ordering on some type.  This trait is for representing the
diff --git a/library/src/scala/math/PartiallyOrdered.scala b/library/src/scala/math/PartiallyOrdered.scala
index b955879ae0f1..f3b014a8ec64 100644
--- a/library/src/scala/math/PartiallyOrdered.scala
+++ b/library/src/scala/math/PartiallyOrdered.scala
@@ -13,6 +13,8 @@
 package scala
 package math
 
+import scala.language.`2`
+
 /** A class for partially ordered data.
  */
 trait PartiallyOrdered[+A] extends Any {
diff --git a/library/src/scala/math/ScalaNumericConversions.scala b/library/src/scala/math/ScalaNumericConversions.scala
index a3fa90c98c9d..03bc7bf0c099 100644
--- a/library/src/scala/math/ScalaNumericConversions.scala
+++ b/library/src/scala/math/ScalaNumericConversions.scala
@@ -13,6 +13,8 @@
 package scala
 package math
 
+import scala.language.`2`
+
 /** A slightly more specific conversion trait for classes which
  *  extend ScalaNumber (which excludes value classes.)
  */
diff --git a/library/src/scala/math/package.scala b/library/src/scala/math/package.scala
index dbfde894aa0c..3cf2999336a5 100644
--- a/library/src/scala/math/package.scala
+++ b/library/src/scala/math/package.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** The package object `scala.math` contains methods for performing basic
   * numeric operations such as elementary exponential, logarithmic, root and
   * trigonometric functions.

From 8d9152c374eae45159a97b4f22143d8573535c81 Mon Sep 17 00:00:00 2001
From: Hamza Remmal <hamza@remmal.net>
Date: Mon, 5 May 2025 17:41:02 +0200
Subject: [PATCH 07/15] chore: add `scala.language.2` to files in `scala.jdk`

---
 library/src/scala/jdk/Accumulator.scala                  | 1 +
 library/src/scala/jdk/AnyAccumulator.scala               | 1 +
 library/src/scala/jdk/CollectionConverters.scala         | 1 +
 library/src/scala/jdk/DoubleAccumulator.scala            | 1 +
 library/src/scala/jdk/DurationConverters.scala           | 1 +
 library/src/scala/jdk/FunctionConverters.scala           | 2 ++
 library/src/scala/jdk/FunctionExtensions.scala           | 1 +
 library/src/scala/jdk/FunctionWrappers.scala             | 2 ++
 library/src/scala/jdk/FutureConverters.scala             | 1 +
 library/src/scala/jdk/IntAccumulator.scala               | 2 ++
 library/src/scala/jdk/LongAccumulator.scala              | 2 ++
 library/src/scala/jdk/OptionConverters.scala             | 1 +
 library/src/scala/jdk/OptionShape.scala                  | 1 +
 library/src/scala/jdk/StreamConverters.scala             | 1 +
 library/src/scala/jdk/javaapi/CollectionConverters.scala | 1 +
 library/src/scala/jdk/javaapi/DurationConverters.scala   | 1 +
 library/src/scala/jdk/javaapi/FunctionConverters.scala   | 2 ++
 library/src/scala/jdk/javaapi/FutureConverters.scala     | 1 +
 library/src/scala/jdk/javaapi/OptionConverters.scala     | 1 +
 library/src/scala/jdk/javaapi/StreamConverters.scala     | 1 +
 library/src/scala/jdk/package.scala                      | 2 ++
 21 files changed, 27 insertions(+)

diff --git a/library/src/scala/jdk/Accumulator.scala b/library/src/scala/jdk/Accumulator.scala
index 0398a204b9a0..6ea9d7ef543f 100644
--- a/library/src/scala/jdk/Accumulator.scala
+++ b/library/src/scala/jdk/Accumulator.scala
@@ -14,6 +14,7 @@ package scala.jdk
 
 import java.{lang => jl}
 
+import scala.language.`2`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.{Stepper, StepperShape, mutable}
 import scala.language.implicitConversions
diff --git a/library/src/scala/jdk/AnyAccumulator.scala b/library/src/scala/jdk/AnyAccumulator.scala
index fa952105fcca..064fc99ff639 100644
--- a/library/src/scala/jdk/AnyAccumulator.scala
+++ b/library/src/scala/jdk/AnyAccumulator.scala
@@ -12,6 +12,7 @@
 
 package scala.jdk
 
+import scala.language.`2`
 import java.io.{ObjectInputStream, ObjectOutputStream}
 import java.util.Spliterator
 import java.util.function.Consumer
diff --git a/library/src/scala/jdk/CollectionConverters.scala b/library/src/scala/jdk/CollectionConverters.scala
index 9cbe1c5fea43..fc379237e1d4 100644
--- a/library/src/scala/jdk/CollectionConverters.scala
+++ b/library/src/scala/jdk/CollectionConverters.scala
@@ -12,6 +12,7 @@
 
 package scala.jdk
 
+import scala.language.`2`
 import scala.collection.convert.{AsJavaExtensions, AsScalaExtensions}
 
 /** This object provides extension methods that convert between Scala and Java collections.
diff --git a/library/src/scala/jdk/DoubleAccumulator.scala b/library/src/scala/jdk/DoubleAccumulator.scala
index dfdb2feba9ea..8280029b79db 100644
--- a/library/src/scala/jdk/DoubleAccumulator.scala
+++ b/library/src/scala/jdk/DoubleAccumulator.scala
@@ -12,6 +12,7 @@
 
 package scala.jdk
 
+import scala.language.`2`
 import java.io.{ObjectInputStream, ObjectOutputStream}
 import java.util.Spliterator
 import java.util.function.{Consumer, DoubleConsumer}
diff --git a/library/src/scala/jdk/DurationConverters.scala b/library/src/scala/jdk/DurationConverters.scala
index a98cd5b709d6..3332abb6dc8d 100644
--- a/library/src/scala/jdk/DurationConverters.scala
+++ b/library/src/scala/jdk/DurationConverters.scala
@@ -12,6 +12,7 @@
 
 package scala.jdk
 
+import scala.language.`2`
 import java.time.{Duration => JDuration}
 
 import scala.concurrent.duration.FiniteDuration
diff --git a/library/src/scala/jdk/FunctionConverters.scala b/library/src/scala/jdk/FunctionConverters.scala
index 3c2d42564df0..20c97b7e731a 100644
--- a/library/src/scala/jdk/FunctionConverters.scala
+++ b/library/src/scala/jdk/FunctionConverters.scala
@@ -15,6 +15,8 @@
 
 package scala.jdk
 
+import scala.language.`2`
+
 /** This object provides extension methods that convert between Scala and Java function types.
   *
   * When writing Java code, use the explicit conversion methods defined in
diff --git a/library/src/scala/jdk/FunctionExtensions.scala b/library/src/scala/jdk/FunctionExtensions.scala
index e932609e7af5..117575bc290d 100644
--- a/library/src/scala/jdk/FunctionExtensions.scala
+++ b/library/src/scala/jdk/FunctionExtensions.scala
@@ -15,6 +15,7 @@
 
 package scala.jdk
 
+import scala.language.`2`
 import language.implicitConversions
 
 trait Priority3FunctionExtensions {
diff --git a/library/src/scala/jdk/FunctionWrappers.scala b/library/src/scala/jdk/FunctionWrappers.scala
index 27153ffed820..838da8b84099 100644
--- a/library/src/scala/jdk/FunctionWrappers.scala
+++ b/library/src/scala/jdk/FunctionWrappers.scala
@@ -15,6 +15,8 @@
 
 package scala.jdk
 
+import scala.language.`2`
+
 object FunctionWrappers {
   case class FromJavaBiConsumer[T, U](jf: java.util.function.BiConsumer[T, U]) extends scala.Function2[T, U, Unit] {
     def apply(x1: T, x2: U) = jf.accept(x1, x2)
diff --git a/library/src/scala/jdk/FutureConverters.scala b/library/src/scala/jdk/FutureConverters.scala
index 9b9b6ad3c8b6..ca2da2290de6 100644
--- a/library/src/scala/jdk/FutureConverters.scala
+++ b/library/src/scala/jdk/FutureConverters.scala
@@ -12,6 +12,7 @@
 
 package scala.jdk
 
+import scala.language.`2`
 import java.util.concurrent.CompletionStage
 
 import scala.concurrent.Future
diff --git a/library/src/scala/jdk/IntAccumulator.scala b/library/src/scala/jdk/IntAccumulator.scala
index 9b7a904b36e3..3f3a3cfef2a5 100644
--- a/library/src/scala/jdk/IntAccumulator.scala
+++ b/library/src/scala/jdk/IntAccumulator.scala
@@ -22,6 +22,8 @@ import scala.collection.Stepper.EfficientSplit
 import scala.collection.{AnyStepper, Factory, IntStepper, SeqFactory, Stepper, StepperShape, mutable}
 import scala.language.implicitConversions
 
+import scala.language.`2`
+
 /** A specialized Accumulator that holds `Int`s without boxing, see [[Accumulator]]. */
 final class IntAccumulator
   extends Accumulator[Int, AnyAccumulator, IntAccumulator]
diff --git a/library/src/scala/jdk/LongAccumulator.scala b/library/src/scala/jdk/LongAccumulator.scala
index 38b868ae1111..105b137e9891 100644
--- a/library/src/scala/jdk/LongAccumulator.scala
+++ b/library/src/scala/jdk/LongAccumulator.scala
@@ -22,6 +22,8 @@ import scala.collection.Stepper.EfficientSplit
 import scala.collection.{AnyStepper, Factory, LongStepper, SeqFactory, Stepper, StepperShape, mutable}
 import scala.language.implicitConversions
 
+import scala.language.`2`
+
 /** A specialized Accumulator that holds `Long`s without boxing, see [[Accumulator]]. */
 final class LongAccumulator
   extends Accumulator[Long, AnyAccumulator, LongAccumulator]
diff --git a/library/src/scala/jdk/OptionConverters.scala b/library/src/scala/jdk/OptionConverters.scala
index 5fbfef206394..b8eb3743dcc0 100644
--- a/library/src/scala/jdk/OptionConverters.scala
+++ b/library/src/scala/jdk/OptionConverters.scala
@@ -12,6 +12,7 @@
 
 package scala.jdk
 
+import scala.language.`2`
 import java.util.{Optional, OptionalDouble, OptionalInt, OptionalLong}
 
 /** This object provides extension methods that convert between Scala `Option` and Java `Optional`
diff --git a/library/src/scala/jdk/OptionShape.scala b/library/src/scala/jdk/OptionShape.scala
index e56b3296e439..4cf565a8be55 100644
--- a/library/src/scala/jdk/OptionShape.scala
+++ b/library/src/scala/jdk/OptionShape.scala
@@ -15,6 +15,7 @@ package scala.jdk
 import java.util.{Optional, OptionalDouble, OptionalInt, OptionalLong}
 import java.{lang => jl}
 
+import scala.language.`2`
 import scala.annotation.implicitNotFound
 
 /** A type class implementing conversions from a generic Scala `Option` or Java `Optional` to
diff --git a/library/src/scala/jdk/StreamConverters.scala b/library/src/scala/jdk/StreamConverters.scala
index e3338bdba011..f4aaad90d998 100644
--- a/library/src/scala/jdk/StreamConverters.scala
+++ b/library/src/scala/jdk/StreamConverters.scala
@@ -12,6 +12,7 @@
 
 package scala.jdk
 
+import scala.language.`2`
 import scala.collection.convert.StreamExtensions
 
 /** This object provides extension methods to create [[java.util.stream.Stream Java Streams]] that
diff --git a/library/src/scala/jdk/javaapi/CollectionConverters.scala b/library/src/scala/jdk/javaapi/CollectionConverters.scala
index 8bf1bb9e2a41..3d1dd3e3de52 100644
--- a/library/src/scala/jdk/javaapi/CollectionConverters.scala
+++ b/library/src/scala/jdk/javaapi/CollectionConverters.scala
@@ -12,6 +12,7 @@
 
 package scala.jdk.javaapi
 
+import scala.language.`2`
 import scala.collection.convert.{AsJavaConverters, AsScalaConverters}
 
 /** This object contains methods that convert between Scala and Java collections.
diff --git a/library/src/scala/jdk/javaapi/DurationConverters.scala b/library/src/scala/jdk/javaapi/DurationConverters.scala
index 00285a11c41a..60b4ba22e698 100644
--- a/library/src/scala/jdk/javaapi/DurationConverters.scala
+++ b/library/src/scala/jdk/javaapi/DurationConverters.scala
@@ -12,6 +12,7 @@
 
 package scala.jdk.javaapi
 
+import scala.language.`2`
 import java.time.temporal.ChronoUnit
 import java.time.{Duration => JDuration}
 import java.util.concurrent.TimeUnit
diff --git a/library/src/scala/jdk/javaapi/FunctionConverters.scala b/library/src/scala/jdk/javaapi/FunctionConverters.scala
index 22c9769bbf42..617ba4fe5896 100644
--- a/library/src/scala/jdk/javaapi/FunctionConverters.scala
+++ b/library/src/scala/jdk/javaapi/FunctionConverters.scala
@@ -15,6 +15,8 @@
 
 package scala.jdk.javaapi
 
+import scala.language.`2`
+
 /** This object contains methods that convert between Scala and Java function types.
   *
   * The explicit conversion methods defined here are intended to be used in Java code. For Scala
diff --git a/library/src/scala/jdk/javaapi/FutureConverters.scala b/library/src/scala/jdk/javaapi/FutureConverters.scala
index d28a8da8a92e..4a6f693827bb 100644
--- a/library/src/scala/jdk/javaapi/FutureConverters.scala
+++ b/library/src/scala/jdk/javaapi/FutureConverters.scala
@@ -12,6 +12,7 @@
 
 package scala.jdk.javaapi
 
+import scala.language.`2`
 import java.util.concurrent.{CompletableFuture, CompletionStage}
 import scala.concurrent.impl.FutureConvertersImpl.{CF, P}
 import scala.concurrent.{ExecutionContext, Future}
diff --git a/library/src/scala/jdk/javaapi/OptionConverters.scala b/library/src/scala/jdk/javaapi/OptionConverters.scala
index 27ae7b4e6060..f486706547ae 100644
--- a/library/src/scala/jdk/javaapi/OptionConverters.scala
+++ b/library/src/scala/jdk/javaapi/OptionConverters.scala
@@ -12,6 +12,7 @@
 
 package scala.jdk.javaapi
 
+import scala.language.`2`
 import java.util.{Optional, OptionalDouble, OptionalInt, OptionalLong}
 import java.{lang => jl}
 
diff --git a/library/src/scala/jdk/javaapi/StreamConverters.scala b/library/src/scala/jdk/javaapi/StreamConverters.scala
index d5adeb84ab71..456d6ab12b48 100644
--- a/library/src/scala/jdk/javaapi/StreamConverters.scala
+++ b/library/src/scala/jdk/javaapi/StreamConverters.scala
@@ -12,6 +12,7 @@
 
 package scala.jdk.javaapi
 
+import scala.language.`2`
 import java.util.stream.{DoubleStream, IntStream, LongStream, Stream, StreamSupport}
 import java.{lang => jl}
 
diff --git a/library/src/scala/jdk/package.scala b/library/src/scala/jdk/package.scala
index 386a6886cefd..93b099ae5fcb 100644
--- a/library/src/scala/jdk/package.scala
+++ b/library/src/scala/jdk/package.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 /** The jdk package contains utilities to interact with JDK classes.
  * 
  * This packages offers a number of converters, that are able to wrap or copy

From f267b7474502d62cb713679ee654245049436e88 Mon Sep 17 00:00:00 2001
From: Hamza Remmal <hamza@remmal.net>
Date: Mon, 5 May 2025 17:42:21 +0200
Subject: [PATCH 08/15] chore: add `scala.language.2` to files in `scala.io`

---
 library/src/scala/io/AnsiColor.scala      | 2 ++
 library/src/scala/io/BufferedSource.scala | 1 +
 library/src/scala/io/Codec.scala          | 1 +
 library/src/scala/io/Position.scala       | 1 +
 library/src/scala/io/Source.scala         | 1 +
 library/src/scala/io/StdIn.scala          | 1 +
 6 files changed, 7 insertions(+)

diff --git a/library/src/scala/io/AnsiColor.scala b/library/src/scala/io/AnsiColor.scala
index ca27dac45a6b..b22478f1a123 100644
--- a/library/src/scala/io/AnsiColor.scala
+++ b/library/src/scala/io/AnsiColor.scala
@@ -13,6 +13,8 @@
 package scala
 package io
 
+import scala.language.`2`
+
 /** ANSI escape codes providing control over text formatting and color on supporting text terminals.
   *
   * ==ANSI Style and Control Codes==
diff --git a/library/src/scala/io/BufferedSource.scala b/library/src/scala/io/BufferedSource.scala
index 2369b528f8f7..2520159c2520 100644
--- a/library/src/scala/io/BufferedSource.scala
+++ b/library/src/scala/io/BufferedSource.scala
@@ -12,6 +12,7 @@
 
 package scala.io
 
+import scala.language.`2`
 import java.io.{ InputStream, BufferedReader, InputStreamReader, PushbackReader }
 import Source.DefaultBufSize
 import scala.collection.{ Iterator, AbstractIterator }
diff --git a/library/src/scala/io/Codec.scala b/library/src/scala/io/Codec.scala
index a6eeab50b299..dc1e876875ef 100644
--- a/library/src/scala/io/Codec.scala
+++ b/library/src/scala/io/Codec.scala
@@ -13,6 +13,7 @@
 package scala
 package io
 
+import scala.language.`2`
 import java.nio.charset.{CharacterCodingException, Charset, CharsetDecoder, CharsetEncoder, CodingErrorAction => Action}
 import java.nio.charset.StandardCharsets.{ISO_8859_1, UTF_8}
 import scala.annotation.migration
diff --git a/library/src/scala/io/Position.scala b/library/src/scala/io/Position.scala
index 5a0a4aecdc31..67a4b967d0a6 100644
--- a/library/src/scala/io/Position.scala
+++ b/library/src/scala/io/Position.scala
@@ -13,6 +13,7 @@
 package scala
 package io
 
+import scala.language.`2`
 import annotation.nowarn
 
 /** The object Position provides convenience methods to encode
diff --git a/library/src/scala/io/Source.scala b/library/src/scala/io/Source.scala
index 360c9fe0cf6d..7c4368ffcb30 100644
--- a/library/src/scala/io/Source.scala
+++ b/library/src/scala/io/Source.scala
@@ -17,6 +17,7 @@ import scala.collection.{AbstractIterator, BufferedIterator}
 import java.io.{Closeable, FileInputStream, FileNotFoundException, InputStream, PrintStream, File => JFile}
 import java.net.{URI, URL}
 
+import scala.language.`2`
 import scala.annotation.nowarn
 
 /** This object provides convenience methods to create an iterable
diff --git a/library/src/scala/io/StdIn.scala b/library/src/scala/io/StdIn.scala
index a39f99b4d689..66a7611db223 100644
--- a/library/src/scala/io/StdIn.scala
+++ b/library/src/scala/io/StdIn.scala
@@ -13,6 +13,7 @@
 package scala
 package io
 
+import scala.language.`2`
 import java.text.MessageFormat
 
 /** private[scala] because this is not functionality we should be providing

From 57e3e9c58136ae4536ae4a360e67acbacf4c5f9c Mon Sep 17 00:00:00 2001
From: Hamza Remmal <hamza@remmal.net>
Date: Mon, 5 May 2025 17:43:06 +0200
Subject: [PATCH 09/15] chore: add `scala.language.2` to files in
 `scala.compat`

---
 library/src/scala/compat/Platform.scala | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/library/src/scala/compat/Platform.scala b/library/src/scala/compat/Platform.scala
index b3ecb194a12c..d79d7d4e8412 100644
--- a/library/src/scala/compat/Platform.scala
+++ b/library/src/scala/compat/Platform.scala
@@ -13,6 +13,8 @@
 package scala
 package compat
 
+import scala.language.`2`
+
 @deprecated("Will be removed in the future.", since = "2.13.0")
 object Platform {
 

From da1c550a3f2cd200ded63f73fed1c5359566ed43 Mon Sep 17 00:00:00 2001
From: Hamza Remmal <hamza@remmal.net>
Date: Mon, 5 May 2025 17:43:55 +0200
Subject: [PATCH 10/15] chore: add `scala.language.2` to files in `scala.beans`

---
 library/src/scala/beans/BeanProperty.scala        | 2 ++
 library/src/scala/beans/BooleanBeanProperty.scala | 1 +
 2 files changed, 3 insertions(+)

diff --git a/library/src/scala/beans/BeanProperty.scala b/library/src/scala/beans/BeanProperty.scala
index 7b2ef0c9d516..42e1a30c2a25 100644
--- a/library/src/scala/beans/BeanProperty.scala
+++ b/library/src/scala/beans/BeanProperty.scala
@@ -12,6 +12,8 @@
 
 package scala.beans
 
+import scala.language.`2`
+
 import scala.annotation.meta.{beanGetter, beanSetter, field}
 
 /** When attached to a field, this annotation adds a setter and a getter
diff --git a/library/src/scala/beans/BooleanBeanProperty.scala b/library/src/scala/beans/BooleanBeanProperty.scala
index 72d253df2f8b..cd9f0288913d 100644
--- a/library/src/scala/beans/BooleanBeanProperty.scala
+++ b/library/src/scala/beans/BooleanBeanProperty.scala
@@ -12,6 +12,7 @@
 
 package scala.beans
 
+import scala.language.`2`
 import scala.annotation.meta.{beanGetter, beanSetter, field}
 
 /** This annotation has the same functionality as

From 762023b2bb647aac223bd2f0648c6ec56c71980d Mon Sep 17 00:00:00 2001
From: Hamza Remmal <hamza@remmal.net>
Date: Mon, 5 May 2025 17:47:12 +0200
Subject: [PATCH 11/15] chore: add `scala.language.2` to files in
 `scala.annotation`

---
 library/src/scala/annotation/Annotation.scala                  | 2 ++
 library/src/scala/annotation/ClassfileAnnotation.scala         | 2 ++
 library/src/scala/annotation/ConstantAnnotation.scala          | 2 ++
 library/src/scala/annotation/StaticAnnotation.scala            | 2 ++
 library/src/scala/annotation/TypeConstraint.scala              | 2 ++
 library/src/scala/annotation/compileTimeOnly.scala             | 1 +
 library/src/scala/annotation/elidable.scala                    | 2 ++
 library/src/scala/annotation/implicitAmbiguous.scala           | 2 ++
 library/src/scala/annotation/implicitNotFound.scala            | 2 ++
 library/src/scala/annotation/meta/beanGetter.scala             | 2 ++
 library/src/scala/annotation/meta/beanSetter.scala             | 2 ++
 library/src/scala/annotation/meta/companionClass.scala         | 2 ++
 library/src/scala/annotation/meta/companionMethod.scala        | 2 ++
 library/src/scala/annotation/meta/companionObject.scala        | 2 ++
 library/src/scala/annotation/meta/defaultArg.scala             | 2 ++
 library/src/scala/annotation/meta/field.scala                  | 2 ++
 library/src/scala/annotation/meta/getter.scala                 | 2 ++
 library/src/scala/annotation/meta/languageFeature.scala        | 2 ++
 library/src/scala/annotation/meta/package.scala                | 2 ++
 library/src/scala/annotation/meta/param.scala                  | 2 ++
 library/src/scala/annotation/meta/setter.scala                 | 2 ++
 library/src/scala/annotation/meta/superArg.scala               | 2 ++
 library/src/scala/annotation/migration.scala                   | 2 ++
 library/src/scala/annotation/nowarn.scala                      | 2 ++
 library/src/scala/annotation/showAsInfix.scala                 | 2 ++
 library/src/scala/annotation/strictfp.scala                    | 2 ++
 library/src/scala/annotation/switch.scala                      | 2 ++
 library/src/scala/annotation/tailrec.scala                     | 2 ++
 library/src/scala/annotation/unchecked/uncheckedStable.scala   | 1 +
 library/src/scala/annotation/unchecked/uncheckedVariance.scala | 2 ++
 library/src/scala/annotation/unspecialized.scala               | 2 ++
 library/src/scala/annotation/unused.scala                      | 2 ++
 library/src/scala/annotation/varargs.scala                     | 2 ++
 33 files changed, 64 insertions(+)

diff --git a/library/src/scala/annotation/Annotation.scala b/library/src/scala/annotation/Annotation.scala
index a78842cbf1c4..1b9ae71fd6b9 100644
--- a/library/src/scala/annotation/Annotation.scala
+++ b/library/src/scala/annotation/Annotation.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /**
  * A base class for annotations.
  *
diff --git a/library/src/scala/annotation/ClassfileAnnotation.scala b/library/src/scala/annotation/ClassfileAnnotation.scala
index be3c98b6130a..93a175272a3d 100644
--- a/library/src/scala/annotation/ClassfileAnnotation.scala
+++ b/library/src/scala/annotation/ClassfileAnnotation.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /** A base class for classfile annotations. These are stored as
  *  [[https://docs.oracle.com/javase/8/docs/technotes/guides/language/annotations.html Java annotations]]
  *  in classfiles.
diff --git a/library/src/scala/annotation/ConstantAnnotation.scala b/library/src/scala/annotation/ConstantAnnotation.scala
index b9a933371cc8..39110fbe166d 100644
--- a/library/src/scala/annotation/ConstantAnnotation.scala
+++ b/library/src/scala/annotation/ConstantAnnotation.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /**
  * Annotation classes extending this trait only accept constant values as arguments.
  *
diff --git a/library/src/scala/annotation/StaticAnnotation.scala b/library/src/scala/annotation/StaticAnnotation.scala
index dc0136db70af..3f3513c05ff9 100644
--- a/library/src/scala/annotation/StaticAnnotation.scala
+++ b/library/src/scala/annotation/StaticAnnotation.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /**
  * A base class for static annotations. These are available to the Scala type checker or Scala
  * reflection, even across different compilation units.
diff --git a/library/src/scala/annotation/TypeConstraint.scala b/library/src/scala/annotation/TypeConstraint.scala
index b9b5a62aa3c9..121710b137bf 100644
--- a/library/src/scala/annotation/TypeConstraint.scala
+++ b/library/src/scala/annotation/TypeConstraint.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /** A marker for annotations that, when applied to a type, should be treated
  *  as a constraint on the annotated type.
  *
diff --git a/library/src/scala/annotation/compileTimeOnly.scala b/library/src/scala/annotation/compileTimeOnly.scala
index e2eb7560b8bf..8981ad7d0eda 100644
--- a/library/src/scala/annotation/compileTimeOnly.scala
+++ b/library/src/scala/annotation/compileTimeOnly.scala
@@ -12,6 +12,7 @@
 
 package scala.annotation
 
+import scala.language.`2`
 import scala.annotation.meta._
 
 /**
diff --git a/library/src/scala/annotation/elidable.scala b/library/src/scala/annotation/elidable.scala
index e15f0de8d9f1..cdbd9b5d592c 100644
--- a/library/src/scala/annotation/elidable.scala
+++ b/library/src/scala/annotation/elidable.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /** An annotation for methods whose bodies may be excluded
  *  from compiler-generated bytecode.
  *
diff --git a/library/src/scala/annotation/implicitAmbiguous.scala b/library/src/scala/annotation/implicitAmbiguous.scala
index 5520c945fef2..c734daf76e4b 100644
--- a/library/src/scala/annotation/implicitAmbiguous.scala
+++ b/library/src/scala/annotation/implicitAmbiguous.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /**
   * To customize the error message that's emitted when an implicit search finds
   * multiple ambiguous values, annotate at least one of the implicit values
diff --git a/library/src/scala/annotation/implicitNotFound.scala b/library/src/scala/annotation/implicitNotFound.scala
index 55a9179a394f..70080aafabf4 100644
--- a/library/src/scala/annotation/implicitNotFound.scala
+++ b/library/src/scala/annotation/implicitNotFound.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /**
  * To customize the error message that's emitted when an implicit of type
  * `C[T1,..., TN]` cannot be found, annotate the class `C` with `@implicitNotFound`.
diff --git a/library/src/scala/annotation/meta/beanGetter.scala b/library/src/scala/annotation/meta/beanGetter.scala
index 58d37bfb1cde..887019a564e1 100644
--- a/library/src/scala/annotation/meta/beanGetter.scala
+++ b/library/src/scala/annotation/meta/beanGetter.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation.meta
 
+import scala.language.`2`
+
 /**
  * Consult the documentation in package [[scala.annotation.meta]].
  */
diff --git a/library/src/scala/annotation/meta/beanSetter.scala b/library/src/scala/annotation/meta/beanSetter.scala
index 670c67259fa8..003efeb5cd45 100644
--- a/library/src/scala/annotation/meta/beanSetter.scala
+++ b/library/src/scala/annotation/meta/beanSetter.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation.meta
 
+import scala.language.`2`
+
 /**
  * Consult the documentation in package [[scala.annotation.meta]].
  */
diff --git a/library/src/scala/annotation/meta/companionClass.scala b/library/src/scala/annotation/meta/companionClass.scala
index 0a7b072b521d..aa5f03752ae5 100644
--- a/library/src/scala/annotation/meta/companionClass.scala
+++ b/library/src/scala/annotation/meta/companionClass.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation.meta
 
+import scala.language.`2`
+
 /**
  * When defining an implicit class, the Scala compiler creates an implicit
  * conversion method for it. Annotations `@companionClass` and `@companionMethod`
diff --git a/library/src/scala/annotation/meta/companionMethod.scala b/library/src/scala/annotation/meta/companionMethod.scala
index 2e0080a1d61f..ba815cbebe65 100644
--- a/library/src/scala/annotation/meta/companionMethod.scala
+++ b/library/src/scala/annotation/meta/companionMethod.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation.meta
 
+import scala.language.`2`
+
 /**
  * When defining an implicit class, the Scala compiler creates an implicit
  * conversion method for it. Annotations `@companionClass` and `@companionMethod`
diff --git a/library/src/scala/annotation/meta/companionObject.scala b/library/src/scala/annotation/meta/companionObject.scala
index dc817b138707..c92e827d817d 100644
--- a/library/src/scala/annotation/meta/companionObject.scala
+++ b/library/src/scala/annotation/meta/companionObject.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation.meta
 
+import scala.language.`2`
+
 /**
  * Currently unused; intended as an annotation target for classes such as case classes
  * that automatically generate a companion object
diff --git a/library/src/scala/annotation/meta/defaultArg.scala b/library/src/scala/annotation/meta/defaultArg.scala
index 4964bcb683dc..e4cdab835e05 100644
--- a/library/src/scala/annotation/meta/defaultArg.scala
+++ b/library/src/scala/annotation/meta/defaultArg.scala
@@ -13,6 +13,8 @@
 package scala.annotation
 package meta
 
+import scala.language.`2`
+
 /**
  * This internal meta annotation is used by the compiler to support default annotation arguments.
  *
diff --git a/library/src/scala/annotation/meta/field.scala b/library/src/scala/annotation/meta/field.scala
index ccd64a0179f7..eeee4975e477 100644
--- a/library/src/scala/annotation/meta/field.scala
+++ b/library/src/scala/annotation/meta/field.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation.meta
 
+import scala.language.`2`
+
 /**
  * Consult the documentation in package [[scala.annotation.meta]].
  */
diff --git a/library/src/scala/annotation/meta/getter.scala b/library/src/scala/annotation/meta/getter.scala
index acbc7989c901..d016798c8f12 100644
--- a/library/src/scala/annotation/meta/getter.scala
+++ b/library/src/scala/annotation/meta/getter.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation.meta
 
+import scala.language.`2`
+
 /**
  * Consult the documentation in package [[scala.annotation.meta]].
  */
diff --git a/library/src/scala/annotation/meta/languageFeature.scala b/library/src/scala/annotation/meta/languageFeature.scala
index f2d9c7890d47..620f297cfba6 100644
--- a/library/src/scala/annotation/meta/languageFeature.scala
+++ b/library/src/scala/annotation/meta/languageFeature.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation.meta
 
+import scala.language.`2`
+
 /**
  * An annotation giving particulars for a language feature in object `scala.language`.
  */
diff --git a/library/src/scala/annotation/meta/package.scala b/library/src/scala/annotation/meta/package.scala
index ab315e412e07..805b6750f10f 100644
--- a/library/src/scala/annotation/meta/package.scala
+++ b/library/src/scala/annotation/meta/package.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /**
  * When defining a field, the Scala compiler creates up to four accessors
  * for it: a getter, a setter, and if the field is annotated with
diff --git a/library/src/scala/annotation/meta/param.scala b/library/src/scala/annotation/meta/param.scala
index 8c69a3b644b1..5a755b454d71 100644
--- a/library/src/scala/annotation/meta/param.scala
+++ b/library/src/scala/annotation/meta/param.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation.meta
 
+import scala.language.`2`
+
 /**
  * Consult the documentation in package [[scala.annotation.meta]].
  */
diff --git a/library/src/scala/annotation/meta/setter.scala b/library/src/scala/annotation/meta/setter.scala
index b37979bec597..e8ff9ae03f01 100644
--- a/library/src/scala/annotation/meta/setter.scala
+++ b/library/src/scala/annotation/meta/setter.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation.meta
 
+import scala.language.`2`
+
 /**
  * Consult the documentation in package [[scala.annotation.meta]].
  */
diff --git a/library/src/scala/annotation/meta/superArg.scala b/library/src/scala/annotation/meta/superArg.scala
index 181db2651f4e..39465b723937 100644
--- a/library/src/scala/annotation/meta/superArg.scala
+++ b/library/src/scala/annotation/meta/superArg.scala
@@ -13,6 +13,8 @@
 package scala.annotation
 package meta
 
+import scala.language.`2`
+
 /**
  * This internal annotation encodes arguments passed to annotation superclasses. Example:
  *
diff --git a/library/src/scala/annotation/migration.scala b/library/src/scala/annotation/migration.scala
index 81ef78dbd367..5980e5b623c7 100644
--- a/library/src/scala/annotation/migration.scala
+++ b/library/src/scala/annotation/migration.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /**
  * An annotation that marks a member as having changed semantics
  * between versions.  This is intended for methods which for one
diff --git a/library/src/scala/annotation/nowarn.scala b/library/src/scala/annotation/nowarn.scala
index a083af4544ed..54ae27251a68 100644
--- a/library/src/scala/annotation/nowarn.scala
+++ b/library/src/scala/annotation/nowarn.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /** An annotation for local warning suppression.
   *
   * The optional `value` parameter allows selectively silencing messages. See `-Wconf:help` for help
diff --git a/library/src/scala/annotation/showAsInfix.scala b/library/src/scala/annotation/showAsInfix.scala
index 9c4ecbe2eea1..8344f1266b59 100644
--- a/library/src/scala/annotation/showAsInfix.scala
+++ b/library/src/scala/annotation/showAsInfix.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /**
  * This annotation configures how Scala prints two-parameter generic types.
   *
diff --git a/library/src/scala/annotation/strictfp.scala b/library/src/scala/annotation/strictfp.scala
index 40e297fc4d97..e745c7af9842 100644
--- a/library/src/scala/annotation/strictfp.scala
+++ b/library/src/scala/annotation/strictfp.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /** If this annotation is present on a method or its enclosing class,
  *  the strictfp flag will be emitted.
  */
diff --git a/library/src/scala/annotation/switch.scala b/library/src/scala/annotation/switch.scala
index f4af17741fe6..8c940959c4ba 100644
--- a/library/src/scala/annotation/switch.scala
+++ b/library/src/scala/annotation/switch.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /** An annotation to be applied to a match expression.  If present,
  *  the compiler will verify that the match has been compiled to a
  *  [[https://docs.oracle.com/javase/specs/jvms/se7/html/jvms-3.html#jvms-3.10 tableswitch or lookupswitch]]
diff --git a/library/src/scala/annotation/tailrec.scala b/library/src/scala/annotation/tailrec.scala
index 7b3f80dbf66f..6a1bd92bcb6b 100644
--- a/library/src/scala/annotation/tailrec.scala
+++ b/library/src/scala/annotation/tailrec.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /** A method annotation which verifies that the method will be compiled
  *  with tail call optimization.
  *
diff --git a/library/src/scala/annotation/unchecked/uncheckedStable.scala b/library/src/scala/annotation/unchecked/uncheckedStable.scala
index 12a18d635fe4..2bf9d779cd1f 100644
--- a/library/src/scala/annotation/unchecked/uncheckedStable.scala
+++ b/library/src/scala/annotation/unchecked/uncheckedStable.scala
@@ -12,6 +12,7 @@
 
 package scala.annotation.unchecked
 
+import scala.language.`2`
 import scala.annotation.meta.{field, getter}
 
 /** An annotation for values that are assumed to be stable even though their
diff --git a/library/src/scala/annotation/unchecked/uncheckedVariance.scala b/library/src/scala/annotation/unchecked/uncheckedVariance.scala
index 60f06ad95f7d..c2624792c917 100644
--- a/library/src/scala/annotation/unchecked/uncheckedVariance.scala
+++ b/library/src/scala/annotation/unchecked/uncheckedVariance.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation.unchecked
 
+import scala.language.`2`
+
 /** An annotation for type arguments for which one wants to suppress variance checking.
  */
 final class uncheckedVariance extends scala.annotation.StaticAnnotation {}
diff --git a/library/src/scala/annotation/unspecialized.scala b/library/src/scala/annotation/unspecialized.scala
index c0f668a75298..3b960858bc31 100644
--- a/library/src/scala/annotation/unspecialized.scala
+++ b/library/src/scala/annotation/unspecialized.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /** A method annotation which suppresses the creation of
  *  additional specialized forms based on enclosing specialized
  *  type parameters.
diff --git a/library/src/scala/annotation/unused.scala b/library/src/scala/annotation/unused.scala
index 270286864822..d9937e0479ea 100644
--- a/library/src/scala/annotation/unused.scala
+++ b/library/src/scala/annotation/unused.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /** Mark an element unused for a given context.
  *
  *  Unused warnings are suppressed for elements known to be unused.
diff --git a/library/src/scala/annotation/varargs.scala b/library/src/scala/annotation/varargs.scala
index 68d1080a53f8..1d08e2468433 100644
--- a/library/src/scala/annotation/varargs.scala
+++ b/library/src/scala/annotation/varargs.scala
@@ -12,6 +12,8 @@
 
 package scala.annotation
 
+import scala.language.`2`
+
 /** A method annotation which instructs the compiler to generate a
  *  Java varargs-style forwarder method for interop. This annotation can
  *  only be applied to methods with repeated parameters.

From 030566836ca5471de14bb818852dd8f6eebae8ab Mon Sep 17 00:00:00 2001
From: Hamza Remmal <hamza@remmal.net>
Date: Mon, 5 May 2025 17:50:06 +0200
Subject: [PATCH 12/15] chore: add `scala.language.2` to files in
 `scala.concurrent`

---
 library/src/scala/concurrent/Awaitable.scala                    | 2 +-
 library/src/scala/concurrent/BatchingExecutor.scala             | 1 +
 library/src/scala/concurrent/BlockContext.scala                 | 2 ++
 library/src/scala/concurrent/Channel.scala                      | 2 ++
 library/src/scala/concurrent/DelayedLazyVal.scala               | 1 +
 library/src/scala/concurrent/ExecutionContext.scala             | 2 +-
 library/src/scala/concurrent/Future.scala                       | 1 +
 library/src/scala/concurrent/JavaConversions.scala              | 1 +
 library/src/scala/concurrent/Promise.scala                      | 1 +
 library/src/scala/concurrent/SyncChannel.scala                  | 2 ++
 library/src/scala/concurrent/SyncVar.scala                      | 1 +
 library/src/scala/concurrent/duration/Deadline.scala            | 2 ++
 library/src/scala/concurrent/duration/Duration.scala            | 1 +
 library/src/scala/concurrent/duration/DurationConversions.scala | 1 +
 library/src/scala/concurrent/duration/package.scala             | 1 +
 library/src/scala/concurrent/impl/ExecutionContextImpl.scala    | 1 +
 library/src/scala/concurrent/impl/FutureConvertersImpl.scala    | 1 +
 library/src/scala/concurrent/impl/Promise.scala                 | 2 ++
 library/src/scala/concurrent/package.scala                      | 1 +
 19 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/library/src/scala/concurrent/Awaitable.scala b/library/src/scala/concurrent/Awaitable.scala
index 1372e1614ac8..368c81b985ca 100644
--- a/library/src/scala/concurrent/Awaitable.scala
+++ b/library/src/scala/concurrent/Awaitable.scala
@@ -13,7 +13,7 @@
 package scala.concurrent
 
 
-
+import scala.language.`2`
 import scala.concurrent.duration.Duration
 
 
diff --git a/library/src/scala/concurrent/BatchingExecutor.scala b/library/src/scala/concurrent/BatchingExecutor.scala
index ac197c89f8c1..38e2d7e3ea80 100644
--- a/library/src/scala/concurrent/BatchingExecutor.scala
+++ b/library/src/scala/concurrent/BatchingExecutor.scala
@@ -12,6 +12,7 @@
 
 package scala.concurrent
 
+import scala.language.`2`
 import java.util.concurrent.Executor
 import java.util.Objects
 import scala.util.control.NonFatal
diff --git a/library/src/scala/concurrent/BlockContext.scala b/library/src/scala/concurrent/BlockContext.scala
index 37483c307fd0..d5084adb7277 100644
--- a/library/src/scala/concurrent/BlockContext.scala
+++ b/library/src/scala/concurrent/BlockContext.scala
@@ -12,6 +12,8 @@
 
 package scala.concurrent
 
+import scala.language.`2`
+
 /**
  * A context to be notified by [[scala.concurrent.blocking]] when
  * a thread is about to block. In effect this trait provides
diff --git a/library/src/scala/concurrent/Channel.scala b/library/src/scala/concurrent/Channel.scala
index a9ada60e3da0..6021b92063fd 100644
--- a/library/src/scala/concurrent/Channel.scala
+++ b/library/src/scala/concurrent/Channel.scala
@@ -12,6 +12,8 @@
 
 package scala.concurrent
 
+import scala.language.`2`
+
 /** This class provides a simple FIFO queue of data objects,
  *  which are read by one or more reader threads.
  *
diff --git a/library/src/scala/concurrent/DelayedLazyVal.scala b/library/src/scala/concurrent/DelayedLazyVal.scala
index 1a450c3c0458..aee3dfbed5fc 100644
--- a/library/src/scala/concurrent/DelayedLazyVal.scala
+++ b/library/src/scala/concurrent/DelayedLazyVal.scala
@@ -12,6 +12,7 @@
 
 package scala.concurrent
 
+import scala.language.`2`
 
 /** A `DelayedLazyVal` is a wrapper for lengthy computations which have a
  *  valid partially computed result.
diff --git a/library/src/scala/concurrent/ExecutionContext.scala b/library/src/scala/concurrent/ExecutionContext.scala
index b132e2dee5b7..6943c2e0180e 100644
--- a/library/src/scala/concurrent/ExecutionContext.scala
+++ b/library/src/scala/concurrent/ExecutionContext.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent
 
-
+import scala.language.`2`
 import java.util.concurrent.{ ExecutorService, Executor }
 import scala.annotation.implicitNotFound
 
diff --git a/library/src/scala/concurrent/Future.scala b/library/src/scala/concurrent/Future.scala
index 4142d8400200..f6a36ea8ab5d 100644
--- a/library/src/scala/concurrent/Future.scala
+++ b/library/src/scala/concurrent/Future.scala
@@ -12,6 +12,7 @@
 
 package scala.concurrent
 
+import scala.language.`2`
 import java.util.concurrent.atomic.AtomicReference
 import java.util.concurrent.locks.LockSupport
 import scala.util.control.{NoStackTrace, NonFatal}
diff --git a/library/src/scala/concurrent/JavaConversions.scala b/library/src/scala/concurrent/JavaConversions.scala
index 3250e656941a..fe82406f7e38 100644
--- a/library/src/scala/concurrent/JavaConversions.scala
+++ b/library/src/scala/concurrent/JavaConversions.scala
@@ -12,6 +12,7 @@
 
 package scala.concurrent
 
+import scala.language.`2`
 import java.util.concurrent.{ExecutorService, Executor}
 import scala.language.implicitConversions
 
diff --git a/library/src/scala/concurrent/Promise.scala b/library/src/scala/concurrent/Promise.scala
index cf3f23543c5a..44d85c15dbff 100644
--- a/library/src/scala/concurrent/Promise.scala
+++ b/library/src/scala/concurrent/Promise.scala
@@ -12,6 +12,7 @@
 
 package scala.concurrent
 
+import scala.language.`2`
 import scala.util.{ Try, Success, Failure }
 
 /** Promise is an object which can be completed with a value or failed
diff --git a/library/src/scala/concurrent/SyncChannel.scala b/library/src/scala/concurrent/SyncChannel.scala
index 8792524524c3..9f21e53b9bb0 100644
--- a/library/src/scala/concurrent/SyncChannel.scala
+++ b/library/src/scala/concurrent/SyncChannel.scala
@@ -12,6 +12,8 @@
 
 package scala.concurrent
 
+import scala.language.`2`
+
 /** A `SyncChannel` allows one to exchange data synchronously between
  *  a reader and a writer thread. The writer thread is blocked until the
  *  data to be written has been read by a corresponding reader thread.
diff --git a/library/src/scala/concurrent/SyncVar.scala b/library/src/scala/concurrent/SyncVar.scala
index 66c5fd1bb81d..3f1b4d356a97 100644
--- a/library/src/scala/concurrent/SyncVar.scala
+++ b/library/src/scala/concurrent/SyncVar.scala
@@ -12,6 +12,7 @@
 
 package scala.concurrent
 
+import scala.language.`2`
 import java.util.concurrent.TimeUnit
 
 /** A class to provide safe concurrent access to a mutable cell.
diff --git a/library/src/scala/concurrent/duration/Deadline.scala b/library/src/scala/concurrent/duration/Deadline.scala
index 353d0f30fff8..a2cd4eadeb1d 100644
--- a/library/src/scala/concurrent/duration/Deadline.scala
+++ b/library/src/scala/concurrent/duration/Deadline.scala
@@ -12,6 +12,8 @@
 
 package scala.concurrent.duration
 
+import scala.language.`2`
+
 /**
  * This class stores a deadline, as obtained via `Deadline.now` or the
  * duration DSL:
diff --git a/library/src/scala/concurrent/duration/Duration.scala b/library/src/scala/concurrent/duration/Duration.scala
index 1312bb12d1d5..752bcfa28d72 100644
--- a/library/src/scala/concurrent/duration/Duration.scala
+++ b/library/src/scala/concurrent/duration/Duration.scala
@@ -12,6 +12,7 @@
 
 package scala.concurrent.duration
 
+import scala.language.`2`
 import java.lang.{ Double => JDouble }
 import scala.collection.StringParsers
 
diff --git a/library/src/scala/concurrent/duration/DurationConversions.scala b/library/src/scala/concurrent/duration/DurationConversions.scala
index 30036331be73..849d5ebefead 100644
--- a/library/src/scala/concurrent/duration/DurationConversions.scala
+++ b/library/src/scala/concurrent/duration/DurationConversions.scala
@@ -12,6 +12,7 @@
 
 package scala.concurrent.duration
 
+import scala.language.`2`
 import DurationConversions._
 
 // Would be nice to limit the visibility of this trait a little bit,
diff --git a/library/src/scala/concurrent/duration/package.scala b/library/src/scala/concurrent/duration/package.scala
index f81b8777f6d0..03a323d785c2 100644
--- a/library/src/scala/concurrent/duration/package.scala
+++ b/library/src/scala/concurrent/duration/package.scala
@@ -12,6 +12,7 @@
 
 package scala.concurrent
 
+import scala.language.`2`
 import scala.language.implicitConversions
 
 package object duration {
diff --git a/library/src/scala/concurrent/impl/ExecutionContextImpl.scala b/library/src/scala/concurrent/impl/ExecutionContextImpl.scala
index 262a12b1b4b9..a9732349f66b 100644
--- a/library/src/scala/concurrent/impl/ExecutionContextImpl.scala
+++ b/library/src/scala/concurrent/impl/ExecutionContextImpl.scala
@@ -12,6 +12,7 @@
 
 package scala.concurrent.impl
 
+import scala.language.`2`
 import java.util.concurrent.{ Semaphore, ForkJoinPool, ForkJoinWorkerThread, Callable, Executor, ExecutorService, ThreadFactory, TimeUnit }
 import java.util.Collection
 import scala.concurrent.{ BlockContext, ExecutionContext, CanAwait, ExecutionContextExecutor, ExecutionContextExecutorService }
diff --git a/library/src/scala/concurrent/impl/FutureConvertersImpl.scala b/library/src/scala/concurrent/impl/FutureConvertersImpl.scala
index a9eed4cbb055..9073f2f6fd2c 100644
--- a/library/src/scala/concurrent/impl/FutureConvertersImpl.scala
+++ b/library/src/scala/concurrent/impl/FutureConvertersImpl.scala
@@ -12,6 +12,7 @@
 
 package scala.concurrent.impl
 
+import scala.language.`2`
 import java.util.concurrent.{CompletableFuture, CompletionStage, TimeUnit}
 import java.util.function.{BiConsumer, BiFunction, Consumer, Function => JFunction}
 
diff --git a/library/src/scala/concurrent/impl/Promise.scala b/library/src/scala/concurrent/impl/Promise.scala
index 89f1addb8aa8..3542bfd31c29 100644
--- a/library/src/scala/concurrent/impl/Promise.scala
+++ b/library/src/scala/concurrent/impl/Promise.scala
@@ -11,6 +11,8 @@
  */
 
 package scala.concurrent.impl
+
+import scala.language.`2`
 import scala.concurrent.{Batchable, CanAwait, ExecutionContext, ExecutionException, Future, TimeoutException}
 import scala.concurrent.duration.Duration
 import scala.annotation.{nowarn, switch, tailrec}
diff --git a/library/src/scala/concurrent/package.scala b/library/src/scala/concurrent/package.scala
index d648a1c90a15..703ef97ef118 100644
--- a/library/src/scala/concurrent/package.scala
+++ b/library/src/scala/concurrent/package.scala
@@ -12,6 +12,7 @@
 
 package scala
 
+import scala.language.`2`
 import scala.concurrent.duration.Duration
 import scala.annotation.implicitNotFound
 

From 54346d796fd19a193ebb864f5f578f2c06945604 Mon Sep 17 00:00:00 2001
From: Hamza Remmal <hamza@remmal.net>
Date: Mon, 5 May 2025 18:17:41 +0200
Subject: [PATCH 13/15] chore: add `scala.language.2` to files in
 `scala.runtime`

---
 library/src/scala/runtime/AbstractFunction0.scala         | 2 ++
 library/src/scala/runtime/AbstractFunction1.scala         | 2 ++
 library/src/scala/runtime/AbstractFunction10.scala        | 2 ++
 library/src/scala/runtime/AbstractFunction11.scala        | 2 ++
 library/src/scala/runtime/AbstractFunction12.scala        | 2 ++
 library/src/scala/runtime/AbstractFunction13.scala        | 2 ++
 library/src/scala/runtime/AbstractFunction14.scala        | 2 ++
 library/src/scala/runtime/AbstractFunction15.scala        | 2 ++
 library/src/scala/runtime/AbstractFunction16.scala        | 2 ++
 library/src/scala/runtime/AbstractFunction17.scala        | 2 ++
 library/src/scala/runtime/AbstractFunction18.scala        | 2 ++
 library/src/scala/runtime/AbstractFunction19.scala        | 2 ++
 library/src/scala/runtime/AbstractFunction2.scala         | 2 ++
 library/src/scala/runtime/AbstractFunction20.scala        | 2 ++
 library/src/scala/runtime/AbstractFunction21.scala        | 2 ++
 library/src/scala/runtime/AbstractFunction22.scala        | 2 ++
 library/src/scala/runtime/AbstractFunction3.scala         | 2 ++
 library/src/scala/runtime/AbstractFunction4.scala         | 2 ++
 library/src/scala/runtime/AbstractFunction5.scala         | 2 ++
 library/src/scala/runtime/AbstractFunction6.scala         | 2 ++
 library/src/scala/runtime/AbstractFunction7.scala         | 2 ++
 library/src/scala/runtime/AbstractFunction8.scala         | 2 ++
 library/src/scala/runtime/AbstractFunction9.scala         | 2 ++
 library/src/scala/runtime/AbstractPartialFunction.scala   | 2 ++
 library/src/scala/runtime/ArrayCharSequence.scala         | 2 ++
 library/src/scala/runtime/ClassValueCompat.scala          | 2 +-
 library/src/scala/runtime/LambdaDeserialize.scala         | 2 ++
 library/src/scala/runtime/LambdaDeserializer.scala        | 1 +
 library/src/scala/runtime/LazyRef.scala                   | 2 ++
 library/src/scala/runtime/MethodCache.scala               | 2 +-
 library/src/scala/runtime/ModuleSerializationProxy.scala  | 1 +
 library/src/scala/runtime/NonLocalReturnControl.scala     | 1 +
 library/src/scala/runtime/Nothing$.scala                  | 1 +
 library/src/scala/runtime/Null$.scala                     | 2 ++
 library/src/scala/runtime/PStatics.scala                  | 2 ++
 library/src/scala/runtime/RichBoolean.scala               | 1 +
 library/src/scala/runtime/RichByte.scala                  | 2 ++
 library/src/scala/runtime/RichChar.scala                  | 2 ++
 library/src/scala/runtime/RichDouble.scala                | 2 ++
 library/src/scala/runtime/RichFloat.scala                 | 2 ++
 library/src/scala/runtime/RichInt.scala                   | 1 +
 library/src/scala/runtime/RichLong.scala                  | 2 ++
 library/src/scala/runtime/RichShort.scala                 | 2 ++
 library/src/scala/runtime/ScalaNumberProxy.scala          | 1 +
 library/src/scala/runtime/ScalaRunTime.scala              | 1 +
 library/src/scala/runtime/StructuralCallSite.scala        | 1 +
 library/src/scala/runtime/Tuple2Zipped.scala              | 2 +-
 library/src/scala/runtime/Tuple3Zipped.scala              | 2 +-
 library/src/scala/runtime/java8/JFunction0$mcB$sp.scala   | 2 ++
 library/src/scala/runtime/java8/JFunction0$mcC$sp.scala   | 2 ++
 library/src/scala/runtime/java8/JFunction0$mcD$sp.scala   | 2 ++
 library/src/scala/runtime/java8/JFunction0$mcF$sp.scala   | 2 ++
 library/src/scala/runtime/java8/JFunction0$mcI$sp.scala   | 2 ++
 library/src/scala/runtime/java8/JFunction0$mcJ$sp.scala   | 2 ++
 library/src/scala/runtime/java8/JFunction0$mcS$sp.scala   | 2 ++
 library/src/scala/runtime/java8/JFunction0$mcV$sp.scala   | 2 ++
 library/src/scala/runtime/java8/JFunction0$mcZ$sp.scala   | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcDD$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcDF$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcDI$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcDJ$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcFD$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcFF$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcFI$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcFJ$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcID$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcIF$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcII$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcIJ$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcJD$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcJF$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcJI$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcJJ$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcVD$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcVF$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcVI$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcVJ$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcZD$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcZF$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcZI$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction1$mcZJ$sp.scala  | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcDDD$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcDDI$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcDDJ$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcDID$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcDII$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcDIJ$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcDJD$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcDJI$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcDJJ$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcFDD$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcFDI$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcFDJ$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcFID$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcFII$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcFIJ$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcFJD$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcFJI$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcFJJ$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcIDD$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcIDI$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcIDJ$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcIID$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcIII$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcIIJ$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcIJD$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcIJI$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcIJJ$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcJDD$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcJDI$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcJDJ$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcJID$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcJII$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcJIJ$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcJJD$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcJJI$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcJJJ$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcVDD$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcVDI$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcVDJ$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcVID$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcVII$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcVIJ$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcVJD$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcVJI$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcVJJ$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcZDD$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcZDI$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcZDJ$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcZID$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcZII$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcZIJ$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcZJD$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcZJI$sp.scala | 2 ++
 library/src/scala/runtime/java8/JFunction2$mcZJJ$sp.scala | 2 ++
 135 files changed, 257 insertions(+), 4 deletions(-)

diff --git a/library/src/scala/runtime/AbstractFunction0.scala b/library/src/scala/runtime/AbstractFunction0.scala
index c322efcd6281..96e6122a120e 100644
--- a/library/src/scala/runtime/AbstractFunction0.scala
+++ b/library/src/scala/runtime/AbstractFunction0.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction0[@specialized(Specializable.Primitives) +R] extends Function0[R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction1.scala b/library/src/scala/runtime/AbstractFunction1.scala
index 49977d8a1393..170e78c29092 100644
--- a/library/src/scala/runtime/AbstractFunction1.scala
+++ b/library/src/scala/runtime/AbstractFunction1.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction1[@specialized(Specializable.Arg) -T1, @specialized(Specializable.Return) +R] extends Function1[T1, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction10.scala b/library/src/scala/runtime/AbstractFunction10.scala
index 121c3cc0d53b..43ce9bda6369 100644
--- a/library/src/scala/runtime/AbstractFunction10.scala
+++ b/library/src/scala/runtime/AbstractFunction10.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction10[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, +R] extends Function10[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction11.scala b/library/src/scala/runtime/AbstractFunction11.scala
index c4321c10f142..e648f5d7a956 100644
--- a/library/src/scala/runtime/AbstractFunction11.scala
+++ b/library/src/scala/runtime/AbstractFunction11.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction11[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, +R] extends Function11[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction12.scala b/library/src/scala/runtime/AbstractFunction12.scala
index 3f6d666f9c42..2b6337199413 100644
--- a/library/src/scala/runtime/AbstractFunction12.scala
+++ b/library/src/scala/runtime/AbstractFunction12.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction12[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, +R] extends Function12[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction13.scala b/library/src/scala/runtime/AbstractFunction13.scala
index 264de0f87296..49a5784a2def 100644
--- a/library/src/scala/runtime/AbstractFunction13.scala
+++ b/library/src/scala/runtime/AbstractFunction13.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction13[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, +R] extends Function13[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction14.scala b/library/src/scala/runtime/AbstractFunction14.scala
index 1e92d1e04bae..dcbfd5536cde 100644
--- a/library/src/scala/runtime/AbstractFunction14.scala
+++ b/library/src/scala/runtime/AbstractFunction14.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction14[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, +R] extends Function14[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction15.scala b/library/src/scala/runtime/AbstractFunction15.scala
index ed9b6b187e39..c610baf0f5b5 100644
--- a/library/src/scala/runtime/AbstractFunction15.scala
+++ b/library/src/scala/runtime/AbstractFunction15.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction15[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, -T15, +R] extends Function15[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction16.scala b/library/src/scala/runtime/AbstractFunction16.scala
index 839efed863b6..12e0d368bb08 100644
--- a/library/src/scala/runtime/AbstractFunction16.scala
+++ b/library/src/scala/runtime/AbstractFunction16.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction16[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, -T15, -T16, +R] extends Function16[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction17.scala b/library/src/scala/runtime/AbstractFunction17.scala
index ee91b466ea5b..e2b48212484d 100644
--- a/library/src/scala/runtime/AbstractFunction17.scala
+++ b/library/src/scala/runtime/AbstractFunction17.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction17[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, -T15, -T16, -T17, +R] extends Function17[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction18.scala b/library/src/scala/runtime/AbstractFunction18.scala
index 83aaf6b10c44..c3bcfa320a51 100644
--- a/library/src/scala/runtime/AbstractFunction18.scala
+++ b/library/src/scala/runtime/AbstractFunction18.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction18[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, -T15, -T16, -T17, -T18, +R] extends Function18[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction19.scala b/library/src/scala/runtime/AbstractFunction19.scala
index 93741656a585..bf5b79e107dc 100644
--- a/library/src/scala/runtime/AbstractFunction19.scala
+++ b/library/src/scala/runtime/AbstractFunction19.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction19[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, -T15, -T16, -T17, -T18, -T19, +R] extends Function19[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction2.scala b/library/src/scala/runtime/AbstractFunction2.scala
index 7c8d1628e545..acd303c56d68 100644
--- a/library/src/scala/runtime/AbstractFunction2.scala
+++ b/library/src/scala/runtime/AbstractFunction2.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction2[@specialized(Specializable.Args) -T1, @specialized(Specializable.Args) -T2, @specialized(Specializable.Return) +R] extends Function2[T1, T2, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction20.scala b/library/src/scala/runtime/AbstractFunction20.scala
index b2858b27c125..db0900561300 100644
--- a/library/src/scala/runtime/AbstractFunction20.scala
+++ b/library/src/scala/runtime/AbstractFunction20.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction20[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, -T15, -T16, -T17, -T18, -T19, -T20, +R] extends Function20[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction21.scala b/library/src/scala/runtime/AbstractFunction21.scala
index e36e6b043959..0a9b07636378 100644
--- a/library/src/scala/runtime/AbstractFunction21.scala
+++ b/library/src/scala/runtime/AbstractFunction21.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction21[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, -T15, -T16, -T17, -T18, -T19, -T20, -T21, +R] extends Function21[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction22.scala b/library/src/scala/runtime/AbstractFunction22.scala
index f9cf63a9542d..e0b36a36a949 100644
--- a/library/src/scala/runtime/AbstractFunction22.scala
+++ b/library/src/scala/runtime/AbstractFunction22.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction22[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, -T15, -T16, -T17, -T18, -T19, -T20, -T21, -T22, +R] extends Function22[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction3.scala b/library/src/scala/runtime/AbstractFunction3.scala
index fbeb3e7b1cf8..13f0e223129b 100644
--- a/library/src/scala/runtime/AbstractFunction3.scala
+++ b/library/src/scala/runtime/AbstractFunction3.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction3[-T1, -T2, -T3, +R] extends Function3[T1, T2, T3, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction4.scala b/library/src/scala/runtime/AbstractFunction4.scala
index 9a91280eea52..7222065daa53 100644
--- a/library/src/scala/runtime/AbstractFunction4.scala
+++ b/library/src/scala/runtime/AbstractFunction4.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction4[-T1, -T2, -T3, -T4, +R] extends Function4[T1, T2, T3, T4, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction5.scala b/library/src/scala/runtime/AbstractFunction5.scala
index a7880cdb0a14..753573c8e373 100644
--- a/library/src/scala/runtime/AbstractFunction5.scala
+++ b/library/src/scala/runtime/AbstractFunction5.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction5[-T1, -T2, -T3, -T4, -T5, +R] extends Function5[T1, T2, T3, T4, T5, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction6.scala b/library/src/scala/runtime/AbstractFunction6.scala
index 0a8c4eeacc70..138df23480b9 100644
--- a/library/src/scala/runtime/AbstractFunction6.scala
+++ b/library/src/scala/runtime/AbstractFunction6.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction6[-T1, -T2, -T3, -T4, -T5, -T6, +R] extends Function6[T1, T2, T3, T4, T5, T6, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction7.scala b/library/src/scala/runtime/AbstractFunction7.scala
index d0f18b0dcbd4..994fcec8ac92 100644
--- a/library/src/scala/runtime/AbstractFunction7.scala
+++ b/library/src/scala/runtime/AbstractFunction7.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction7[-T1, -T2, -T3, -T4, -T5, -T6, -T7, +R] extends Function7[T1, T2, T3, T4, T5, T6, T7, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction8.scala b/library/src/scala/runtime/AbstractFunction8.scala
index 4f1a528a4ed9..97215995504b 100644
--- a/library/src/scala/runtime/AbstractFunction8.scala
+++ b/library/src/scala/runtime/AbstractFunction8.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction8[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, +R] extends Function8[T1, T2, T3, T4, T5, T6, T7, T8, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractFunction9.scala b/library/src/scala/runtime/AbstractFunction9.scala
index f4ebb395bd5a..d4e2d82c2e9c 100644
--- a/library/src/scala/runtime/AbstractFunction9.scala
+++ b/library/src/scala/runtime/AbstractFunction9.scala
@@ -14,6 +14,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 abstract class AbstractFunction9[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, +R] extends Function9[T1, T2, T3, T4, T5, T6, T7, T8, T9, R] {
 
 }
diff --git a/library/src/scala/runtime/AbstractPartialFunction.scala b/library/src/scala/runtime/AbstractPartialFunction.scala
index f4e8ae1b7818..ba28af7797ba 100644
--- a/library/src/scala/runtime/AbstractPartialFunction.scala
+++ b/library/src/scala/runtime/AbstractPartialFunction.scala
@@ -13,6 +13,8 @@
 package scala
 package runtime
 
+import scala.language.`2`
+
 /** `AbstractPartialFunction` reformulates all operations of its supertrait `PartialFunction`
  *  in terms of `isDefinedAt` and `applyOrElse`.
  *
diff --git a/library/src/scala/runtime/ArrayCharSequence.scala b/library/src/scala/runtime/ArrayCharSequence.scala
index 971b0ac24c0d..3294252d215a 100644
--- a/library/src/scala/runtime/ArrayCharSequence.scala
+++ b/library/src/scala/runtime/ArrayCharSequence.scala
@@ -13,6 +13,8 @@
 package scala
 package runtime
 
+import scala.language.`2`
+
 // Still need this one since the implicit class ArrayCharSequence only converts
 // a single argument.
 final class ArrayCharSequence(val xs: Array[Char], start: Int, end: Int) extends CharSequence {
diff --git a/library/src/scala/runtime/ClassValueCompat.scala b/library/src/scala/runtime/ClassValueCompat.scala
index 09a619f7a5f5..68e39d64db02 100644
--- a/library/src/scala/runtime/ClassValueCompat.scala
+++ b/library/src/scala/runtime/ClassValueCompat.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime
 
-
+import scala.language.`2`
 import scala.runtime.ClassValueCompat._
 
 private[scala] abstract class ClassValueCompat[T] extends ClassValueInterface[T] { self =>
diff --git a/library/src/scala/runtime/LambdaDeserialize.scala b/library/src/scala/runtime/LambdaDeserialize.scala
index b4270d63e643..914ef932c076 100644
--- a/library/src/scala/runtime/LambdaDeserialize.scala
+++ b/library/src/scala/runtime/LambdaDeserialize.scala
@@ -18,6 +18,8 @@ import java.util
 import scala.annotation.varargs
 import scala.collection.immutable
 
+import scala.language.`2`
+
 final class LambdaDeserialize private (lookup: MethodHandles.Lookup, targetMethods: Array[MethodHandle]) {
   private val targetMethodMap: util.HashMap[String, MethodHandle] = new util.HashMap[String, MethodHandle](targetMethods.length)
 
diff --git a/library/src/scala/runtime/LambdaDeserializer.scala b/library/src/scala/runtime/LambdaDeserializer.scala
index 76fc5d778bec..c46cb40fb42c 100644
--- a/library/src/scala/runtime/LambdaDeserializer.scala
+++ b/library/src/scala/runtime/LambdaDeserializer.scala
@@ -12,6 +12,7 @@
 
 package scala.runtime
 
+import scala.language.`2`
 import java.lang.invoke._
 
 /**
diff --git a/library/src/scala/runtime/LazyRef.scala b/library/src/scala/runtime/LazyRef.scala
index ee0364cfab94..21ad57642443 100644
--- a/library/src/scala/runtime/LazyRef.scala
+++ b/library/src/scala/runtime/LazyRef.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 /** Classes used as holders for lazy vals defined in methods. */
 
 @SerialVersionUID(1L)
diff --git a/library/src/scala/runtime/MethodCache.scala b/library/src/scala/runtime/MethodCache.scala
index 2aa41c9e352a..e0b341500792 100644
--- a/library/src/scala/runtime/MethodCache.scala
+++ b/library/src/scala/runtime/MethodCache.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-
+import scala.language.`2`
 import java.lang.reflect.{ Method => JMethod }
 import java.lang.{ Class => JClass }
 
diff --git a/library/src/scala/runtime/ModuleSerializationProxy.scala b/library/src/scala/runtime/ModuleSerializationProxy.scala
index ad12bd17f7bc..06e2ce5ae7ee 100644
--- a/library/src/scala/runtime/ModuleSerializationProxy.scala
+++ b/library/src/scala/runtime/ModuleSerializationProxy.scala
@@ -12,6 +12,7 @@
 
 package scala.runtime
 
+import scala.language.`2`
 import java.io.Serializable
 import java.security.PrivilegedActionException
 import java.security.PrivilegedExceptionAction
diff --git a/library/src/scala/runtime/NonLocalReturnControl.scala b/library/src/scala/runtime/NonLocalReturnControl.scala
index 8abd48501e3c..76bb6c01c7b9 100644
--- a/library/src/scala/runtime/NonLocalReturnControl.scala
+++ b/library/src/scala/runtime/NonLocalReturnControl.scala
@@ -12,6 +12,7 @@
 
 package scala.runtime
 
+import scala.language.`2`
 import scala.util.control.ControlThrowable
 
 // remove Unit specialization when binary compatibility permits
diff --git a/library/src/scala/runtime/Nothing$.scala b/library/src/scala/runtime/Nothing$.scala
index cb098a5507da..9cf8acdc3139 100644
--- a/library/src/scala/runtime/Nothing$.scala
+++ b/library/src/scala/runtime/Nothing$.scala
@@ -13,6 +13,7 @@
 package scala
 package runtime
 
+import scala.language.`2`
 
 /**
  * Dummy class which exist only to satisfy the JVM. It corresponds
diff --git a/library/src/scala/runtime/Null$.scala b/library/src/scala/runtime/Null$.scala
index d279f861e94a..30877a03d503 100644
--- a/library/src/scala/runtime/Null$.scala
+++ b/library/src/scala/runtime/Null$.scala
@@ -13,6 +13,8 @@
 package scala
 package runtime
 
+import scala.language.`2`
+
 /**
  * Dummy class which exist only to satisfy the JVM. It corresponds to
  * `scala.Null`. If such type appears in method signatures, it is erased
diff --git a/library/src/scala/runtime/PStatics.scala b/library/src/scala/runtime/PStatics.scala
index 9196e21e75be..212f4a59572e 100644
--- a/library/src/scala/runtime/PStatics.scala
+++ b/library/src/scala/runtime/PStatics.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime
 
+import scala.language.`2`
+
 // things that should be in `Statics`, but can't be yet for bincompat reasons
 // TODO 3.T: move to `Statics`
 private[scala] object PStatics {
diff --git a/library/src/scala/runtime/RichBoolean.scala b/library/src/scala/runtime/RichBoolean.scala
index 8b1c1525cedf..0ef4f28b1249 100644
--- a/library/src/scala/runtime/RichBoolean.scala
+++ b/library/src/scala/runtime/RichBoolean.scala
@@ -13,6 +13,7 @@
 package scala
 package runtime
 
+import scala.language.`2`
 
 final class RichBoolean(val self: Boolean) extends AnyVal with OrderedProxy[Boolean] {
   protected def ord: scala.math.Ordering.Boolean.type = scala.math.Ordering.Boolean
diff --git a/library/src/scala/runtime/RichByte.scala b/library/src/scala/runtime/RichByte.scala
index 6060d9b75a79..84576e3e4c1d 100644
--- a/library/src/scala/runtime/RichByte.scala
+++ b/library/src/scala/runtime/RichByte.scala
@@ -13,6 +13,8 @@
 package scala
 package runtime
 
+import scala.language.`2`
+
 final class RichByte(val self: Byte) extends AnyVal with ScalaWholeNumberProxy[Byte] {
   protected def num: scala.math.Numeric.ByteIsIntegral.type = scala.math.Numeric.ByteIsIntegral
   protected def ord: scala.math.Ordering.Byte.type = scala.math.Ordering.Byte
diff --git a/library/src/scala/runtime/RichChar.scala b/library/src/scala/runtime/RichChar.scala
index 2bdb80be96f4..982d7fb526b8 100644
--- a/library/src/scala/runtime/RichChar.scala
+++ b/library/src/scala/runtime/RichChar.scala
@@ -13,6 +13,8 @@
 package scala
 package runtime
 
+import scala.language.`2`
+
 final class RichChar(val self: Char) extends AnyVal with IntegralProxy[Char] {
   protected def num: scala.math.Numeric.CharIsIntegral.type = scala.math.Numeric.CharIsIntegral
   protected def ord: scala.math.Ordering.Char.type = scala.math.Ordering.Char
diff --git a/library/src/scala/runtime/RichDouble.scala b/library/src/scala/runtime/RichDouble.scala
index b453e69deee0..a32e9bd69401 100644
--- a/library/src/scala/runtime/RichDouble.scala
+++ b/library/src/scala/runtime/RichDouble.scala
@@ -13,6 +13,8 @@
 package scala
 package runtime
 
+import scala.language.`2`
+
 final class RichDouble(val self: Double) extends AnyVal with FractionalProxy[Double] {
   protected def num: Fractional[Double] = scala.math.Numeric.DoubleIsFractional
   protected def ord: Ordering[Double]   = scala.math.Ordering.Double.TotalOrdering
diff --git a/library/src/scala/runtime/RichFloat.scala b/library/src/scala/runtime/RichFloat.scala
index c6570ab10615..67b3e4df7dbc 100644
--- a/library/src/scala/runtime/RichFloat.scala
+++ b/library/src/scala/runtime/RichFloat.scala
@@ -13,6 +13,8 @@
 package scala
 package runtime
 
+import scala.language.`2`
+
 final class RichFloat(val self: Float) extends AnyVal with FractionalProxy[Float] {
   protected def num: Fractional[Float] = scala.math.Numeric.FloatIsFractional
   protected def ord: Ordering[Float]   = scala.math.Ordering.Float.TotalOrdering
diff --git a/library/src/scala/runtime/RichInt.scala b/library/src/scala/runtime/RichInt.scala
index 7499e5078006..d56706887468 100644
--- a/library/src/scala/runtime/RichInt.scala
+++ b/library/src/scala/runtime/RichInt.scala
@@ -13,6 +13,7 @@
 package scala
 package runtime
 
+import scala.language.`2`
 import scala.collection.immutable.Range
 
 // Note that this does not implement IntegralProxy[Int] so that it can return
diff --git a/library/src/scala/runtime/RichLong.scala b/library/src/scala/runtime/RichLong.scala
index 1f5bc5d0da4b..bf4b6eacc866 100644
--- a/library/src/scala/runtime/RichLong.scala
+++ b/library/src/scala/runtime/RichLong.scala
@@ -13,6 +13,8 @@
 package scala
 package runtime
 
+import scala.language.`2`
+
 final class RichLong(val self: Long) extends AnyVal with IntegralProxy[Long] {
   protected def num: scala.math.Numeric.LongIsIntegral.type = scala.math.Numeric.LongIsIntegral
   protected def ord: scala.math.Ordering.Long.type = scala.math.Ordering.Long
diff --git a/library/src/scala/runtime/RichShort.scala b/library/src/scala/runtime/RichShort.scala
index 1f4ebfaf0b1a..536491228f53 100644
--- a/library/src/scala/runtime/RichShort.scala
+++ b/library/src/scala/runtime/RichShort.scala
@@ -13,6 +13,8 @@
 package scala
 package runtime
 
+import scala.language.`2`
+
 final class RichShort(val self: Short) extends AnyVal with ScalaWholeNumberProxy[Short] {
   protected def num: scala.math.Numeric.ShortIsIntegral.type = scala.math.Numeric.ShortIsIntegral
   protected def ord: scala.math.Ordering.Short.type = scala.math.Ordering.Short
diff --git a/library/src/scala/runtime/ScalaNumberProxy.scala b/library/src/scala/runtime/ScalaNumberProxy.scala
index a39c0e7854d3..1110917f2026 100644
--- a/library/src/scala/runtime/ScalaNumberProxy.scala
+++ b/library/src/scala/runtime/ScalaNumberProxy.scala
@@ -13,6 +13,7 @@
 package scala
 package runtime
 
+import scala.language.`2`
 import scala.collection.immutable
 import scala.math.ScalaNumericAnyConversions
 import immutable.NumericRange
diff --git a/library/src/scala/runtime/ScalaRunTime.scala b/library/src/scala/runtime/ScalaRunTime.scala
index 5c227b33c5ef..b0341731c394 100644
--- a/library/src/scala/runtime/ScalaRunTime.scala
+++ b/library/src/scala/runtime/ScalaRunTime.scala
@@ -13,6 +13,7 @@
 package scala
 package runtime
 
+import scala.language.`2`
 import scala.collection.{AbstractIterator, AnyConstr, SortedOps, StrictOptimizedIterableOps, StringOps, StringView, View}
 import scala.collection.generic.IsIterable
 import scala.collection.immutable.{ArraySeq, NumericRange}
diff --git a/library/src/scala/runtime/StructuralCallSite.scala b/library/src/scala/runtime/StructuralCallSite.scala
index 8e245e6c99db..38e6a28f65b5 100644
--- a/library/src/scala/runtime/StructuralCallSite.scala
+++ b/library/src/scala/runtime/StructuralCallSite.scala
@@ -12,6 +12,7 @@
 
 package scala.runtime
 
+import scala.language.`2`
 import java.lang.invoke._
 import java.lang.ref.SoftReference
 import java.lang.reflect.Method
diff --git a/library/src/scala/runtime/Tuple2Zipped.scala b/library/src/scala/runtime/Tuple2Zipped.scala
index e49bf9e1aba6..951be3598ede 100644
--- a/library/src/scala/runtime/Tuple2Zipped.scala
+++ b/library/src/scala/runtime/Tuple2Zipped.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-
+import scala.language.`2`
 import scala.collection.{BuildFrom, IterableOps}
 import scala.language.implicitConversions
 
diff --git a/library/src/scala/runtime/Tuple3Zipped.scala b/library/src/scala/runtime/Tuple3Zipped.scala
index b1e8763f9891..453f785572d7 100644
--- a/library/src/scala/runtime/Tuple3Zipped.scala
+++ b/library/src/scala/runtime/Tuple3Zipped.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-
+import scala.language.`2`
 import scala.collection.{BuildFrom, IterableOps}
 import scala.language.implicitConversions
 
diff --git a/library/src/scala/runtime/java8/JFunction0$mcB$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcB$sp.scala
index cccb1a1a9430..20ea7a917622 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcB$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcB$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction0$mcB$sp extends Function0[Any] with Serializable {
   def apply$mcB$sp(): Byte
   override def apply(): Any = scala.runtime.BoxesRunTime.boxToByte(apply$mcB$sp())
diff --git a/library/src/scala/runtime/java8/JFunction0$mcC$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcC$sp.scala
index c4e0ed82bd2f..963e71d8e090 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcC$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcC$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction0$mcC$sp extends Function0[Any] with Serializable {
   def apply$mcC$sp(): Char
   override def apply(): Any = scala.runtime.BoxesRunTime.boxToCharacter(apply$mcC$sp())
diff --git a/library/src/scala/runtime/java8/JFunction0$mcD$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcD$sp.scala
index 21b9e0152222..5fe0cc051058 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction0$mcD$sp extends Function0[Any] with Serializable {
   def apply$mcD$sp(): Double
   override def apply(): Any = scala.runtime.BoxesRunTime.boxToDouble(apply$mcD$sp())
diff --git a/library/src/scala/runtime/java8/JFunction0$mcF$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcF$sp.scala
index b90637f54c60..ad1d20451309 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcF$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcF$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction0$mcF$sp extends Function0[Any] with Serializable {
   def apply$mcF$sp(): Float
   override def apply(): Any = scala.runtime.BoxesRunTime.boxToFloat(apply$mcF$sp())
diff --git a/library/src/scala/runtime/java8/JFunction0$mcI$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcI$sp.scala
index dd4e0738f985..d34a43a0d2e6 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction0$mcI$sp extends Function0[Any] with Serializable {
   def apply$mcI$sp(): Int
   override def apply(): Any = scala.runtime.BoxesRunTime.boxToInteger(apply$mcI$sp())
diff --git a/library/src/scala/runtime/java8/JFunction0$mcJ$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcJ$sp.scala
index 25d340fa9aae..f8ff8b0b4b55 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction0$mcJ$sp extends Function0[Any] with Serializable {
   def apply$mcJ$sp(): Long
   override def apply(): Any = scala.runtime.BoxesRunTime.boxToLong(apply$mcJ$sp())
diff --git a/library/src/scala/runtime/java8/JFunction0$mcS$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcS$sp.scala
index 44d2a6ae934f..cca35f9f10d9 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcS$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcS$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction0$mcS$sp extends Function0[Any] with Serializable {
   def apply$mcS$sp(): Short
   override def apply(): Any = scala.runtime.BoxesRunTime.boxToShort(apply$mcS$sp())
diff --git a/library/src/scala/runtime/java8/JFunction0$mcV$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcV$sp.scala
index 867d5cfe1052..159133ab877e 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcV$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcV$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction0$mcV$sp extends Function0[Any] with Serializable {
   def apply$mcV$sp(): Unit
   override def apply(): Any = {
diff --git a/library/src/scala/runtime/java8/JFunction0$mcZ$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcZ$sp.scala
index 9f9389aa4445..0cb9349a2402 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcZ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcZ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction0$mcZ$sp extends Function0[Any] with Serializable {
   def apply$mcZ$sp(): Boolean
   override def apply(): Any = scala.runtime.BoxesRunTime.boxToBoolean(apply$mcZ$sp())
diff --git a/library/src/scala/runtime/java8/JFunction1$mcDD$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcDD$sp.scala
index 98491234c57c..f696ee60463b 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcDD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcDD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcDD$sp extends Function1[Any, Any] with Serializable {
   def apply$mcDD$sp(v1: Double): Double
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToDouble(apply$mcDD$sp(scala.runtime.BoxesRunTime.unboxToDouble(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcDF$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcDF$sp.scala
index 702e7201ac7a..f781ceda612f 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcDF$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcDF$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcDF$sp extends Function1[Any, Any] with Serializable {
   def apply$mcDF$sp(v1: Float): Double
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToDouble(apply$mcDF$sp(scala.runtime.BoxesRunTime.unboxToFloat(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcDI$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcDI$sp.scala
index 3d1badf17393..89539845abd0 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcDI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcDI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcDI$sp extends Function1[Any, Any] with Serializable {
   def apply$mcDI$sp(v1: Int): Double
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToDouble(apply$mcDI$sp(scala.runtime.BoxesRunTime.unboxToInt(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcDJ$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcDJ$sp.scala
index ce0c27f8f279..6c95ab61c1c9 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcDJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcDJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcDJ$sp extends Function1[Any, Any] with Serializable {
   def apply$mcDJ$sp(v1: Long): Double
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToDouble(apply$mcDJ$sp(scala.runtime.BoxesRunTime.unboxToLong(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcFD$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcFD$sp.scala
index eb436da193bf..7e94648bfa2e 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcFD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcFD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcFD$sp extends Function1[Any, Any] with Serializable {
   def apply$mcFD$sp(v1: Double): Float
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToFloat(apply$mcFD$sp(scala.runtime.BoxesRunTime.unboxToDouble(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcFF$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcFF$sp.scala
index c7a253449554..f86f38693aca 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcFF$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcFF$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcFF$sp extends Function1[Any, Any] with Serializable {
   def apply$mcFF$sp(v1: Float): Float
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToFloat(apply$mcFF$sp(scala.runtime.BoxesRunTime.unboxToFloat(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcFI$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcFI$sp.scala
index c77a5272ab66..ecadd16bf272 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcFI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcFI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcFI$sp extends Function1[Any, Any] with Serializable {
   def apply$mcFI$sp(v1: Int): Float
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToFloat(apply$mcFI$sp(scala.runtime.BoxesRunTime.unboxToInt(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcFJ$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcFJ$sp.scala
index c0ceaae6856a..6dc0cfa02d8d 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcFJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcFJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcFJ$sp extends Function1[Any, Any] with Serializable {
   def apply$mcFJ$sp(v1: Long): Float
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToFloat(apply$mcFJ$sp(scala.runtime.BoxesRunTime.unboxToLong(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcID$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcID$sp.scala
index 742b46d23602..80de6fa85343 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcID$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcID$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcID$sp extends Function1[Any, Any] with Serializable {
   def apply$mcID$sp(v1: Double): Int
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToInteger(apply$mcID$sp(scala.runtime.BoxesRunTime.unboxToDouble(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcIF$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcIF$sp.scala
index d5dc57ea6d49..fe4967a85332 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcIF$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcIF$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcIF$sp extends Function1[Any, Any] with Serializable {
   def apply$mcIF$sp(v1: Float): Int
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToInteger(apply$mcIF$sp(scala.runtime.BoxesRunTime.unboxToFloat(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcII$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcII$sp.scala
index 1c84c49dccd9..29a342a2c148 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcII$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcII$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcII$sp extends Function1[Any, Any] with Serializable {
   def apply$mcII$sp(v1: Int): Int
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToInteger(apply$mcII$sp(scala.runtime.BoxesRunTime.unboxToInt(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcIJ$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcIJ$sp.scala
index 298afef64518..75a5dfe07c64 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcIJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcIJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcIJ$sp extends Function1[Any, Any] with Serializable {
   def apply$mcIJ$sp(v1: Long): Int
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToInteger(apply$mcIJ$sp(scala.runtime.BoxesRunTime.unboxToLong(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcJD$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcJD$sp.scala
index a315b0ca7e5c..61628b314f0e 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcJD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcJD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcJD$sp extends Function1[Any, Any] with Serializable {
   def apply$mcJD$sp(v1: Double): Long
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToLong(apply$mcJD$sp(scala.runtime.BoxesRunTime.unboxToDouble(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcJF$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcJF$sp.scala
index b810c01df2be..bb7e4d9d9c99 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcJF$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcJF$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcJF$sp extends Function1[Any, Any] with Serializable {
   def apply$mcJF$sp(v1: Float): Long
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToLong(apply$mcJF$sp(scala.runtime.BoxesRunTime.unboxToFloat(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcJI$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcJI$sp.scala
index 11a0e2c9513b..1695c7a6cadb 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcJI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcJI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcJI$sp extends Function1[Any, Any] with Serializable {
   def apply$mcJI$sp(v1: Int): Long
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToLong(apply$mcJI$sp(scala.runtime.BoxesRunTime.unboxToInt(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcJJ$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcJJ$sp.scala
index e6388f802798..ca90319e98f1 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcJJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcJJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcJJ$sp extends Function1[Any, Any] with Serializable {
   def apply$mcJJ$sp(v1: Long): Long
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToLong(apply$mcJJ$sp(scala.runtime.BoxesRunTime.unboxToLong(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcVD$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcVD$sp.scala
index 51b919af7bd6..d15c99c525b8 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcVD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcVD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcVD$sp extends Function1[Any, Any] with Serializable {
   def apply$mcVD$sp(v1: Double): Unit
   override def apply(t: Any): Any = {
diff --git a/library/src/scala/runtime/java8/JFunction1$mcVF$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcVF$sp.scala
index 7c032068bd06..24f4f344b70d 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcVF$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcVF$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcVF$sp extends Function1[Any, Any] with Serializable {
   def apply$mcVF$sp(v1: Float): Unit
   override def apply(t: Any): Any = {
diff --git a/library/src/scala/runtime/java8/JFunction1$mcVI$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcVI$sp.scala
index 06c78e4d4074..4c866d71cd35 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcVI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcVI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcVI$sp extends Function1[Any, Any] with Serializable {
   def apply$mcVI$sp(v1: Int): Unit
   override def apply(t: Any): Any = {
diff --git a/library/src/scala/runtime/java8/JFunction1$mcVJ$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcVJ$sp.scala
index ade57aaad9ea..c800a3963944 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcVJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcVJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcVJ$sp extends Function1[Any, Any] with Serializable {
   def apply$mcVJ$sp(v1: Long): Unit
   override def apply(t: Any): Any = {
diff --git a/library/src/scala/runtime/java8/JFunction1$mcZD$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcZD$sp.scala
index 070c0fed73ee..26582517b776 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcZD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcZD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcZD$sp extends Function1[Any, Any] with Serializable {
   def apply$mcZD$sp(v1: Double): Boolean
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToBoolean(apply$mcZD$sp(scala.runtime.BoxesRunTime.unboxToDouble(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcZF$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcZF$sp.scala
index af1cab6c44d4..1f5340365dc1 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcZF$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcZF$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcZF$sp extends Function1[Any, Any] with Serializable {
   def apply$mcZF$sp(v1: Float): Boolean
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToBoolean(apply$mcZF$sp(scala.runtime.BoxesRunTime.unboxToFloat(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcZI$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcZI$sp.scala
index d9d5f5417b7b..0f0136ae24e3 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcZI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcZI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcZI$sp extends Function1[Any, Any] with Serializable {
   def apply$mcZI$sp(v1: Int): Boolean
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToBoolean(apply$mcZI$sp(scala.runtime.BoxesRunTime.unboxToInt(t)))
diff --git a/library/src/scala/runtime/java8/JFunction1$mcZJ$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcZJ$sp.scala
index b1ac4f5fb0c1..836eba33772d 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcZJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcZJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction1$mcZJ$sp extends Function1[Any, Any] with Serializable {
   def apply$mcZJ$sp(v1: Long): Boolean
   override def apply(t: Any): Any = scala.runtime.BoxesRunTime.boxToBoolean(apply$mcZJ$sp(scala.runtime.BoxesRunTime.unboxToLong(t)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDDD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDDD$sp.scala
index a7dba65aa372..f69c836b205f 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDDD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDDD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcDDD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDDD$sp(v1: Double, v2: Double): Double
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToDouble(apply$mcDDD$sp(scala.runtime.BoxesRunTime.unboxToDouble(v1), scala.runtime.BoxesRunTime.unboxToDouble(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDDI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDDI$sp.scala
index f4dd19493eaa..75be774f081e 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDDI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDDI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcDDI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDDI$sp(v1: Double, v2: Int): Double
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToDouble(apply$mcDDI$sp(scala.runtime.BoxesRunTime.unboxToDouble(v1), scala.runtime.BoxesRunTime.unboxToInt(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDDJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDDJ$sp.scala
index 5ded95bd8910..77f063087ef3 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDDJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDDJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcDDJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDDJ$sp(v1: Double, v2: Long): Double
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToDouble(apply$mcDDJ$sp(scala.runtime.BoxesRunTime.unboxToDouble(v1), scala.runtime.BoxesRunTime.unboxToLong(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDID$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDID$sp.scala
index 2aabd59d8c8e..8c6ad32168e2 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDID$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDID$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcDID$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDID$sp(v1: Int, v2: Double): Double
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToDouble(apply$mcDID$sp(scala.runtime.BoxesRunTime.unboxToInt(v1), scala.runtime.BoxesRunTime.unboxToDouble(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDII$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDII$sp.scala
index ad4467dbe07e..da541e9a4408 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDII$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDII$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcDII$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDII$sp(v1: Int, v2: Int): Double
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToDouble(apply$mcDII$sp(scala.runtime.BoxesRunTime.unboxToInt(v1), scala.runtime.BoxesRunTime.unboxToInt(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDIJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDIJ$sp.scala
index 4bc84d0b9a51..0e9c503013ea 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDIJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDIJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcDIJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDIJ$sp(v1: Int, v2: Long): Double
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToDouble(apply$mcDIJ$sp(scala.runtime.BoxesRunTime.unboxToInt(v1), scala.runtime.BoxesRunTime.unboxToLong(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDJD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDJD$sp.scala
index bc8f02173ad1..cfccc265c108 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDJD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDJD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcDJD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDJD$sp(v1: Long, v2: Double): Double
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToDouble(apply$mcDJD$sp(scala.runtime.BoxesRunTime.unboxToLong(v1), scala.runtime.BoxesRunTime.unboxToDouble(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDJI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDJI$sp.scala
index f139ad404716..625bb29f9841 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDJI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDJI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcDJI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDJI$sp(v1: Long, v2: Int): Double
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToDouble(apply$mcDJI$sp(scala.runtime.BoxesRunTime.unboxToLong(v1), scala.runtime.BoxesRunTime.unboxToInt(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDJJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDJJ$sp.scala
index 8d3b45df6e42..865f56a7de60 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDJJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDJJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcDJJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDJJ$sp(v1: Long, v2: Long): Double
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToDouble(apply$mcDJJ$sp(scala.runtime.BoxesRunTime.unboxToLong(v1), scala.runtime.BoxesRunTime.unboxToLong(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFDD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFDD$sp.scala
index 4381735c8973..6939b57ed114 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFDD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFDD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcFDD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFDD$sp(v1: Double, v2: Double): Float
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToFloat(apply$mcFDD$sp(scala.runtime.BoxesRunTime.unboxToDouble(v1), scala.runtime.BoxesRunTime.unboxToDouble(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFDI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFDI$sp.scala
index e3e5b9a9026d..00dab2f01741 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFDI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFDI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcFDI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFDI$sp(v1: Double, v2: Int): Float
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToFloat(apply$mcFDI$sp(scala.runtime.BoxesRunTime.unboxToDouble(v1), scala.runtime.BoxesRunTime.unboxToInt(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFDJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFDJ$sp.scala
index 1a26782f59dc..5767c6f62824 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFDJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFDJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcFDJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFDJ$sp(v1: Double, v2: Long): Float
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToFloat(apply$mcFDJ$sp(scala.runtime.BoxesRunTime.unboxToDouble(v1), scala.runtime.BoxesRunTime.unboxToLong(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFID$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFID$sp.scala
index 08f8ac2872d6..4b5f39f537ae 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFID$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFID$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcFID$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFID$sp(v1: Int, v2: Double): Float
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToFloat(apply$mcFID$sp(scala.runtime.BoxesRunTime.unboxToInt(v1), scala.runtime.BoxesRunTime.unboxToDouble(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFII$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFII$sp.scala
index 8a482dfa722f..d6c99f2d2ac5 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFII$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFII$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcFII$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFII$sp(v1: Int, v2: Int): Float
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToFloat(apply$mcFII$sp(scala.runtime.BoxesRunTime.unboxToInt(v1), scala.runtime.BoxesRunTime.unboxToInt(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFIJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFIJ$sp.scala
index a3f02eb64c01..e71d90aede81 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFIJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFIJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcFIJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFIJ$sp(v1: Int, v2: Long): Float
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToFloat(apply$mcFIJ$sp(scala.runtime.BoxesRunTime.unboxToInt(v1), scala.runtime.BoxesRunTime.unboxToLong(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFJD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFJD$sp.scala
index a78fed85f23d..89ac313c3f0f 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFJD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFJD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcFJD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFJD$sp(v1: Long, v2: Double): Float
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToFloat(apply$mcFJD$sp(scala.runtime.BoxesRunTime.unboxToLong(v1), scala.runtime.BoxesRunTime.unboxToDouble(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFJI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFJI$sp.scala
index 52dd6c11fe40..8a186380c8f1 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFJI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFJI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcFJI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFJI$sp(v1: Long, v2: Int): Float
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToFloat(apply$mcFJI$sp(scala.runtime.BoxesRunTime.unboxToLong(v1), scala.runtime.BoxesRunTime.unboxToInt(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFJJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFJJ$sp.scala
index 15e91de115c1..aa168fa28735 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFJJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFJJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcFJJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFJJ$sp(v1: Long, v2: Long): Float
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToFloat(apply$mcFJJ$sp(scala.runtime.BoxesRunTime.unboxToLong(v1), scala.runtime.BoxesRunTime.unboxToLong(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIDD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIDD$sp.scala
index 09f7188d5447..d373a3c8f433 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIDD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIDD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcIDD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIDD$sp(v1: Double, v2: Double): Int
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToInteger(apply$mcIDD$sp(scala.runtime.BoxesRunTime.unboxToDouble(v1), scala.runtime.BoxesRunTime.unboxToDouble(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIDI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIDI$sp.scala
index d53a99a61972..11a32cc23dc7 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIDI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIDI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcIDI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIDI$sp(v1: Double, v2: Int): Int
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToInteger(apply$mcIDI$sp(scala.runtime.BoxesRunTime.unboxToDouble(v1), scala.runtime.BoxesRunTime.unboxToInt(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIDJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIDJ$sp.scala
index eedd1db3df17..afd489ebd762 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIDJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIDJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcIDJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIDJ$sp(v1: Double, v2: Long): Int
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToInteger(apply$mcIDJ$sp(scala.runtime.BoxesRunTime.unboxToDouble(v1), scala.runtime.BoxesRunTime.unboxToLong(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIID$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIID$sp.scala
index 067044482034..c5e7b2aa0607 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIID$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIID$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcIID$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIID$sp(v1: Int, v2: Double): Int
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToInteger(apply$mcIID$sp(scala.runtime.BoxesRunTime.unboxToInt(v1), scala.runtime.BoxesRunTime.unboxToDouble(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIII$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIII$sp.scala
index c868fad4e8f5..8ccd335e41ca 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIII$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIII$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcIII$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIII$sp(v1: Int, v2: Int): Int
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToInteger(apply$mcIII$sp(scala.runtime.BoxesRunTime.unboxToInt(v1), scala.runtime.BoxesRunTime.unboxToInt(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIIJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIIJ$sp.scala
index c23e514092aa..463e89462c2b 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIIJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIIJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcIIJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIIJ$sp(v1: Int, v2: Long): Int
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToInteger(apply$mcIIJ$sp(scala.runtime.BoxesRunTime.unboxToInt(v1), scala.runtime.BoxesRunTime.unboxToLong(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIJD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIJD$sp.scala
index 48f58e3d3859..d2bfc1dcf375 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIJD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIJD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcIJD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIJD$sp(v1: Long, v2: Double): Int
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToInteger(apply$mcIJD$sp(scala.runtime.BoxesRunTime.unboxToLong(v1), scala.runtime.BoxesRunTime.unboxToDouble(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIJI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIJI$sp.scala
index c9ce9c1186d3..ddb036b40bab 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIJI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIJI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcIJI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIJI$sp(v1: Long, v2: Int): Int
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToInteger(apply$mcIJI$sp(scala.runtime.BoxesRunTime.unboxToLong(v1), scala.runtime.BoxesRunTime.unboxToInt(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIJJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIJJ$sp.scala
index 7749b84ebefe..d8ea3c2bc2ee 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIJJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIJJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcIJJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIJJ$sp(v1: Long, v2: Long): Int
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToInteger(apply$mcIJJ$sp(scala.runtime.BoxesRunTime.unboxToLong(v1), scala.runtime.BoxesRunTime.unboxToLong(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJDD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJDD$sp.scala
index 4e2885c0c8b1..5c937c34ed03 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJDD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJDD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcJDD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJDD$sp(v1: Double, v2: Double): Long
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToLong(apply$mcJDD$sp(scala.runtime.BoxesRunTime.unboxToDouble(v1), scala.runtime.BoxesRunTime.unboxToDouble(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJDI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJDI$sp.scala
index 29e102ae3e01..7ef1f7faa099 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJDI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJDI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcJDI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJDI$sp(v1: Double, v2: Int): Long
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToLong(apply$mcJDI$sp(scala.runtime.BoxesRunTime.unboxToDouble(v1), scala.runtime.BoxesRunTime.unboxToInt(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJDJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJDJ$sp.scala
index 537d83a4e9d5..9fc8236bd60a 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJDJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJDJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcJDJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJDJ$sp(v1: Double, v2: Long): Long
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToLong(apply$mcJDJ$sp(scala.runtime.BoxesRunTime.unboxToDouble(v1), scala.runtime.BoxesRunTime.unboxToLong(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJID$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJID$sp.scala
index c943f1bbcd1e..5661c3946fcb 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJID$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJID$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcJID$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJID$sp(v1: Int, v2: Double): Long
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToLong(apply$mcJID$sp(scala.runtime.BoxesRunTime.unboxToInt(v1), scala.runtime.BoxesRunTime.unboxToDouble(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJII$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJII$sp.scala
index 387d6424c8d1..b8468b3c9a18 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJII$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJII$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcJII$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJII$sp(v1: Int, v2: Int): Long
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToLong(apply$mcJII$sp(scala.runtime.BoxesRunTime.unboxToInt(v1), scala.runtime.BoxesRunTime.unboxToInt(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJIJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJIJ$sp.scala
index ef33074c5b5e..4e6b6ee3c93e 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJIJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJIJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcJIJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJIJ$sp(v1: Int, v2: Long): Long
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToLong(apply$mcJIJ$sp(scala.runtime.BoxesRunTime.unboxToInt(v1), scala.runtime.BoxesRunTime.unboxToLong(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJJD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJJD$sp.scala
index 314930812281..c3ce2d01d4c7 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJJD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJJD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcJJD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJJD$sp(v1: Long, v2: Double): Long
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToLong(apply$mcJJD$sp(scala.runtime.BoxesRunTime.unboxToLong(v1), scala.runtime.BoxesRunTime.unboxToDouble(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJJI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJJI$sp.scala
index 87bc0de39256..4985db6499c1 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJJI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJJI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcJJI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJJI$sp(v1: Long, v2: Int): Long
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToLong(apply$mcJJI$sp(scala.runtime.BoxesRunTime.unboxToLong(v1), scala.runtime.BoxesRunTime.unboxToInt(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJJJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJJJ$sp.scala
index 391582994fc6..ba1655409228 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJJJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJJJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcJJJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJJJ$sp(v1: Long, v2: Long): Long
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToLong(apply$mcJJJ$sp(scala.runtime.BoxesRunTime.unboxToLong(v1), scala.runtime.BoxesRunTime.unboxToLong(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVDD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVDD$sp.scala
index 056fee1df387..0d4fdfdb0339 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVDD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVDD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcVDD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVDD$sp(v1: Double, v2: Double): Unit
   override def apply(v1: Any, v2: Any): Any = {
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVDI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVDI$sp.scala
index 0683881a2923..80b867418f86 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVDI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVDI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcVDI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVDI$sp(v1: Double, v2: Int): Unit
   override def apply(v1: Any, v2: Any): Any = {
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVDJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVDJ$sp.scala
index 9a50555c1921..835e5ddbd203 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVDJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVDJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcVDJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVDJ$sp(v1: Double, v2: Long): Unit
   override def apply(v1: Any, v2: Any): Any = {
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVID$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVID$sp.scala
index b0df076be14f..7d856f91dbb1 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVID$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVID$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcVID$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVID$sp(v1: Int, v2: Double): Unit
   override def apply(v1: Any, v2: Any): Any = {
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVII$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVII$sp.scala
index 822fa89df106..091fac78ff9e 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVII$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVII$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcVII$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVII$sp(v1: Int, v2: Int): Unit
   override def apply(v1: Any, v2: Any): Any = {
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVIJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVIJ$sp.scala
index b922343162e6..106ac76f4722 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVIJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVIJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcVIJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVIJ$sp(v1: Int, v2: Long): Unit
   override def apply(v1: Any, v2: Any): Any = {
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVJD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVJD$sp.scala
index bb514d145017..8323c7c17863 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVJD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVJD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcVJD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVJD$sp(v1: Long, v2: Double): Unit
   override def apply(v1: Any, v2: Any): Any = {
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVJI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVJI$sp.scala
index 079e48276a7d..d429d016bf4c 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVJI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVJI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcVJI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVJI$sp(v1: Long, v2: Int): Unit
   override def apply(v1: Any, v2: Any): Any = {
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVJJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVJJ$sp.scala
index 4b80f04c9dba..fcf68648c7a0 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVJJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVJJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcVJJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVJJ$sp(v1: Long, v2: Long): Unit
   override def apply(v1: Any, v2: Any): Any = {
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZDD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZDD$sp.scala
index 0918660b802d..d7fcfccface1 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZDD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZDD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcZDD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZDD$sp(v1: Double, v2: Double): Boolean
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToBoolean(apply$mcZDD$sp(scala.runtime.BoxesRunTime.unboxToDouble(v1), scala.runtime.BoxesRunTime.unboxToDouble(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZDI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZDI$sp.scala
index 4514d78b8f3a..509aa05621c9 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZDI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZDI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcZDI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZDI$sp(v1: Double, v2: Int): Boolean
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToBoolean(apply$mcZDI$sp(scala.runtime.BoxesRunTime.unboxToDouble(v1), scala.runtime.BoxesRunTime.unboxToInt(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZDJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZDJ$sp.scala
index daebfd82f041..59fbdcc6b841 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZDJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZDJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcZDJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZDJ$sp(v1: Double, v2: Long): Boolean
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToBoolean(apply$mcZDJ$sp(scala.runtime.BoxesRunTime.unboxToDouble(v1), scala.runtime.BoxesRunTime.unboxToLong(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZID$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZID$sp.scala
index c0a06d1c9373..b18d9e830141 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZID$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZID$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcZID$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZID$sp(v1: Int, v2: Double): Boolean
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToBoolean(apply$mcZID$sp(scala.runtime.BoxesRunTime.unboxToInt(v1), scala.runtime.BoxesRunTime.unboxToDouble(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZII$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZII$sp.scala
index c49fea6a2543..769245ee2239 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZII$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZII$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcZII$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZII$sp(v1: Int, v2: Int): Boolean
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToBoolean(apply$mcZII$sp(scala.runtime.BoxesRunTime.unboxToInt(v1), scala.runtime.BoxesRunTime.unboxToInt(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZIJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZIJ$sp.scala
index bbf003ebd17b..eaa0d979755d 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZIJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZIJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcZIJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZIJ$sp(v1: Int, v2: Long): Boolean
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToBoolean(apply$mcZIJ$sp(scala.runtime.BoxesRunTime.unboxToInt(v1), scala.runtime.BoxesRunTime.unboxToLong(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZJD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZJD$sp.scala
index ab08030714e2..a97ce4c7c596 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZJD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZJD$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcZJD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZJD$sp(v1: Long, v2: Double): Boolean
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToBoolean(apply$mcZJD$sp(scala.runtime.BoxesRunTime.unboxToLong(v1), scala.runtime.BoxesRunTime.unboxToDouble(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZJI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZJI$sp.scala
index 5f32af16f201..d8ebd813e99f 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZJI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZJI$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcZJI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZJI$sp(v1: Long, v2: Int): Boolean
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToBoolean(apply$mcZJI$sp(scala.runtime.BoxesRunTime.unboxToLong(v1), scala.runtime.BoxesRunTime.unboxToInt(v2)))
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZJJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZJJ$sp.scala
index b588644fb0c4..86f960c8566d 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZJJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZJJ$sp.scala
@@ -12,6 +12,8 @@
 
 package scala.runtime.java8
 
+import scala.language.`2`
+
 @FunctionalInterface trait JFunction2$mcZJJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZJJ$sp(v1: Long, v2: Long): Boolean
   override def apply(v1: Any, v2: Any): Any = scala.runtime.BoxesRunTime.boxToBoolean(apply$mcZJJ$sp(scala.runtime.BoxesRunTime.unboxToLong(v1), scala.runtime.BoxesRunTime.unboxToLong(v2)))

From 534a30ed029e887b1bcdbf963ccb3b5998476abd Mon Sep 17 00:00:00 2001
From: Hamza Remmal <hamza@remmal.net>
Date: Mon, 5 May 2025 18:30:31 +0200
Subject: [PATCH 14/15] chore: add `scala.language.2` to files in
 `scala.collection`

---
 library/src/scala/collection/ArrayOps.scala                     | 1 +
 library/src/scala/collection/BitSet.scala                       | 1 +
 library/src/scala/collection/BufferedIterator.scala             | 1 +
 library/src/scala/collection/BuildFrom.scala                    | 1 +
 library/src/scala/collection/DefaultMap.scala                   | 1 +
 library/src/scala/collection/Factory.scala                      | 1 +
 library/src/scala/collection/Hashing.scala                      | 1 +
 library/src/scala/collection/IndexedSeq.scala                   | 1 +
 library/src/scala/collection/IndexedSeqView.scala               | 1 +
 library/src/scala/collection/Iterable.scala                     | 1 +
 library/src/scala/collection/IterableOnce.scala                 | 1 +
 library/src/scala/collection/Iterator.scala                     | 1 +
 library/src/scala/collection/JavaConverters.scala               | 1 +
 library/src/scala/collection/LazyZipOps.scala                   | 1 +
 library/src/scala/collection/LinearSeq.scala                    | 1 +
 library/src/scala/collection/Map.scala                          | 1 +
 library/src/scala/collection/MapView.scala                      | 1 +
 library/src/scala/collection/Searching.scala                    | 1 +
 library/src/scala/collection/Seq.scala                          | 1 +
 library/src/scala/collection/SeqMap.scala                       | 1 +
 library/src/scala/collection/SeqView.scala                      | 1 +
 library/src/scala/collection/Set.scala                          | 1 +
 library/src/scala/collection/SortedMap.scala                    | 1 +
 library/src/scala/collection/SortedOps.scala                    | 1 +
 library/src/scala/collection/SortedSet.scala                    | 1 +
 library/src/scala/collection/Stepper.scala                      | 1 +
 library/src/scala/collection/StepperShape.scala                 | 1 +
 library/src/scala/collection/StrictOptimizedIterableOps.scala   | 1 +
 library/src/scala/collection/StrictOptimizedMapOps.scala        | 2 ++
 library/src/scala/collection/StrictOptimizedSeqOps.scala        | 2 ++
 library/src/scala/collection/StrictOptimizedSetOps.scala        | 2 ++
 library/src/scala/collection/StrictOptimizedSortedMapOps.scala  | 1 +
 library/src/scala/collection/StrictOptimizedSortedSetOps.scala  | 1 +
 library/src/scala/collection/StringOps.scala                    | 1 +
 library/src/scala/collection/StringParsers.scala                | 1 +
 library/src/scala/collection/View.scala                         | 1 +
 library/src/scala/collection/WithFilter.scala                   | 2 ++
 library/src/scala/collection/concurrent/Map.scala               | 1 +
 library/src/scala/collection/concurrent/TrieMap.scala           | 1 +
 library/src/scala/collection/convert/AsJavaConverters.scala     | 1 +
 library/src/scala/collection/convert/AsJavaExtensions.scala     | 1 +
 library/src/scala/collection/convert/AsScalaConverters.scala    | 1 +
 library/src/scala/collection/convert/AsScalaExtensions.scala    | 1 +
 library/src/scala/collection/convert/ImplicitConversions.scala  | 1 +
 .../src/scala/collection/convert/JavaCollectionWrappers.scala   | 1 +
 library/src/scala/collection/convert/StreamExtensions.scala     | 1 +
 library/src/scala/collection/convert/impl/ArrayStepper.scala    | 1 +
 .../src/scala/collection/convert/impl/BinaryTreeStepper.scala   | 1 +
 library/src/scala/collection/convert/impl/BitSetStepper.scala   | 1 +
 library/src/scala/collection/convert/impl/ChampStepper.scala    | 1 +
 .../src/scala/collection/convert/impl/InOrderStepperBase.scala  | 1 +
 .../src/scala/collection/convert/impl/IndexedSeqStepper.scala   | 1 +
 .../src/scala/collection/convert/impl/IndexedStepperBase.scala  | 1 +
 library/src/scala/collection/convert/impl/IteratorStepper.scala | 1 +
 .../src/scala/collection/convert/impl/NumericRangeStepper.scala | 1 +
 library/src/scala/collection/convert/impl/RangeStepper.scala    | 1 +
 library/src/scala/collection/convert/impl/StringStepper.scala   | 1 +
 library/src/scala/collection/convert/impl/TableStepper.scala    | 1 +
 library/src/scala/collection/convert/impl/VectorStepper.scala   | 1 +
 library/src/scala/collection/generic/BitOperations.scala        | 1 +
 library/src/scala/collection/generic/CommonErrors.scala         | 1 +
 .../scala/collection/generic/DefaultSerializationProxy.scala    | 1 +
 library/src/scala/collection/generic/IsIterable.scala           | 2 ++
 library/src/scala/collection/generic/IsIterableOnce.scala       | 2 ++
 library/src/scala/collection/generic/IsMap.scala                | 1 +
 library/src/scala/collection/generic/IsSeq.scala                | 1 +
 library/src/scala/collection/generic/Subtractable.scala         | 2 ++
 library/src/scala/collection/generic/package.scala              | 1 +
 library/src/scala/collection/immutable/ArraySeq.scala           | 1 +
 library/src/scala/collection/immutable/BitSet.scala             | 1 +
 library/src/scala/collection/immutable/ChampCommon.scala        | 1 +
 library/src/scala/collection/immutable/HashMap.scala            | 1 +
 library/src/scala/collection/immutable/HashSet.scala            | 1 +
 library/src/scala/collection/immutable/IntMap.scala             | 1 +
 library/src/scala/collection/immutable/Iterable.scala           | 1 +
 library/src/scala/collection/immutable/LazyList.scala           | 1 +
 library/src/scala/collection/immutable/List.scala               | 1 +
 library/src/scala/collection/immutable/ListMap.scala            | 1 +
 library/src/scala/collection/immutable/ListSet.scala            | 1 +
 library/src/scala/collection/immutable/LongMap.scala            | 1 +
 library/src/scala/collection/immutable/Map.scala                | 1 +
 library/src/scala/collection/immutable/NumericRange.scala       | 1 +
 library/src/scala/collection/immutable/Queue.scala              | 1 +
 library/src/scala/collection/immutable/Range.scala              | 1 +
 library/src/scala/collection/immutable/RedBlackTree.scala       | 1 +
 library/src/scala/collection/immutable/Seq.scala                | 2 ++
 library/src/scala/collection/immutable/SeqMap.scala             | 1 +
 library/src/scala/collection/immutable/Set.scala                | 1 +
 library/src/scala/collection/immutable/SortedMap.scala          | 1 +
 library/src/scala/collection/immutable/SortedSet.scala          | 2 ++
 library/src/scala/collection/immutable/Stream.scala             | 1 +
 .../src/scala/collection/immutable/StrictOptimizedSeqOps.scala  | 1 +
 library/src/scala/collection/immutable/TreeMap.scala            | 1 +
 library/src/scala/collection/immutable/TreeSeqMap.scala         | 1 +
 library/src/scala/collection/immutable/TreeSet.scala            | 1 +
 library/src/scala/collection/immutable/Vector.scala             | 1 +
 library/src/scala/collection/immutable/VectorMap.scala          | 1 +
 library/src/scala/collection/immutable/WrappedString.scala      | 1 +
 library/src/scala/collection/immutable/package.scala            | 1 +
 library/src/scala/collection/mutable/AnyRefMap.scala            | 1 +
 library/src/scala/collection/mutable/ArrayBuffer.scala          | 1 +
 library/src/scala/collection/mutable/ArrayBuilder.scala         | 1 +
 library/src/scala/collection/mutable/ArrayDeque.scala           | 1 +
 library/src/scala/collection/mutable/ArraySeq.scala             | 2 ++
 library/src/scala/collection/mutable/BitSet.scala               | 1 +
 library/src/scala/collection/mutable/Buffer.scala               | 1 +
 library/src/scala/collection/mutable/Builder.scala              | 2 ++
 .../src/scala/collection/mutable/CheckedIndexedSeqView.scala    | 2 ++
 library/src/scala/collection/mutable/Cloneable.scala            | 1 +
 .../src/scala/collection/mutable/CollisionProofHashMap.scala    | 1 +
 library/src/scala/collection/mutable/Growable.scala             | 2 ++
 library/src/scala/collection/mutable/GrowableBuilder.scala      | 1 +
 library/src/scala/collection/mutable/HashMap.scala              | 1 +
 library/src/scala/collection/mutable/HashSet.scala              | 1 +
 library/src/scala/collection/mutable/HashTable.scala            | 1 +
 library/src/scala/collection/mutable/ImmutableBuilder.scala     | 1 +
 library/src/scala/collection/mutable/IndexedSeq.scala           | 2 ++
 library/src/scala/collection/mutable/Iterable.scala             | 1 +
 library/src/scala/collection/mutable/LinkedHashMap.scala        | 1 +
 library/src/scala/collection/mutable/LinkedHashSet.scala        | 1 +
 library/src/scala/collection/mutable/ListBuffer.scala           | 1 +
 library/src/scala/collection/mutable/ListMap.scala              | 1 +
 library/src/scala/collection/mutable/LongMap.scala              | 1 +
 library/src/scala/collection/mutable/Map.scala                  | 2 ++
 library/src/scala/collection/mutable/MultiMap.scala             | 1 +
 library/src/scala/collection/mutable/MutationTracker.scala      | 1 +
 library/src/scala/collection/mutable/OpenHashMap.scala          | 1 +
 library/src/scala/collection/mutable/PriorityQueue.scala        | 1 +
 library/src/scala/collection/mutable/Queue.scala                | 1 +
 library/src/scala/collection/mutable/RedBlackTree.scala         | 1 +
 library/src/scala/collection/mutable/ReusableBuilder.scala      | 1 +
 library/src/scala/collection/mutable/Seq.scala                  | 1 +
 library/src/scala/collection/mutable/SeqMap.scala               | 2 ++
 library/src/scala/collection/mutable/Set.scala                  | 1 +
 library/src/scala/collection/mutable/Shrinkable.scala           | 1 +
 library/src/scala/collection/mutable/SortedMap.scala            | 1 +
 library/src/scala/collection/mutable/SortedSet.scala            | 2 ++
 library/src/scala/collection/mutable/Stack.scala                | 1 +
 library/src/scala/collection/mutable/StringBuilder.scala        | 1 +
 library/src/scala/collection/mutable/TreeMap.scala              | 1 +
 library/src/scala/collection/mutable/TreeSet.scala              | 1 +
 library/src/scala/collection/mutable/UnrolledBuffer.scala       | 1 +
 library/src/scala/collection/mutable/WeakHashMap.scala          | 1 +
 library/src/scala/collection/mutable/package.scala              | 1 +
 library/src/scala/collection/package.scala                      | 2 ++
 145 files changed, 163 insertions(+)

diff --git a/library/src/scala/collection/ArrayOps.scala b/library/src/scala/collection/ArrayOps.scala
index 08758e2ab46a..36025b0a0ade 100644
--- a/library/src/scala/collection/ArrayOps.scala
+++ b/library/src/scala/collection/ArrayOps.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 import java.lang.Math.{max, min}
 import java.util.Arrays
 
diff --git a/library/src/scala/collection/BitSet.scala b/library/src/scala/collection/BitSet.scala
index a2da58ea3b9b..fa23bbc5a19a 100644
--- a/library/src/scala/collection/BitSet.scala
+++ b/library/src/scala/collection/BitSet.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 import java.io.{ObjectInputStream, ObjectOutputStream}
 
 import scala.annotation.nowarn
diff --git a/library/src/scala/collection/BufferedIterator.scala b/library/src/scala/collection/BufferedIterator.scala
index b5a7f9658422..d56f2909989e 100644
--- a/library/src/scala/collection/BufferedIterator.scala
+++ b/library/src/scala/collection/BufferedIterator.scala
@@ -12,6 +12,7 @@
 
 package scala.collection
 
+import scala.language.`2`
 
 /** Buffered iterators are iterators which provide a method `head`
  *  that inspects the next element without discarding it.
diff --git a/library/src/scala/collection/BuildFrom.scala b/library/src/scala/collection/BuildFrom.scala
index 0530e4445bd5..2e93fac6b782 100644
--- a/library/src/scala/collection/BuildFrom.scala
+++ b/library/src/scala/collection/BuildFrom.scala
@@ -12,6 +12,7 @@
 
 package scala.collection
 
+import scala.language.`2`
 import scala.annotation.implicitNotFound
 import scala.collection.mutable.Builder
 import scala.collection.immutable.WrappedString
diff --git a/library/src/scala/collection/DefaultMap.scala b/library/src/scala/collection/DefaultMap.scala
index ca7d2a67f757..27138060165c 100644
--- a/library/src/scala/collection/DefaultMap.scala
+++ b/library/src/scala/collection/DefaultMap.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 
 /** A default map which builds a default `immutable.Map` implementation for all
   * transformations.
diff --git a/library/src/scala/collection/Factory.scala b/library/src/scala/collection/Factory.scala
index 595134eb54e4..ba6b120b90fb 100644
--- a/library/src/scala/collection/Factory.scala
+++ b/library/src/scala/collection/Factory.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 import scala.collection.immutable.NumericRange
 import scala.language.implicitConversions
 import scala.collection.mutable.Builder
diff --git a/library/src/scala/collection/Hashing.scala b/library/src/scala/collection/Hashing.scala
index 7d3702d26e43..cd82b4574b85 100644
--- a/library/src/scala/collection/Hashing.scala
+++ b/library/src/scala/collection/Hashing.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 
 protected[collection] object Hashing {
 
diff --git a/library/src/scala/collection/IndexedSeq.scala b/library/src/scala/collection/IndexedSeq.scala
index 3735755041a3..9dbbd5e2ed4d 100644
--- a/library/src/scala/collection/IndexedSeq.scala
+++ b/library/src/scala/collection/IndexedSeq.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 import scala.annotation.{nowarn, tailrec}
 import scala.collection.Searching.{Found, InsertionPoint, SearchResult}
 import scala.collection.Stepper.EfficientSplit
diff --git a/library/src/scala/collection/IndexedSeqView.scala b/library/src/scala/collection/IndexedSeqView.scala
index 4fd99c1080af..491c58cb1129 100644
--- a/library/src/scala/collection/IndexedSeqView.scala
+++ b/library/src/scala/collection/IndexedSeqView.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 import scala.annotation.nowarn
 
 
diff --git a/library/src/scala/collection/Iterable.scala b/library/src/scala/collection/Iterable.scala
index 304a87402f79..32052a72192a 100644
--- a/library/src/scala/collection/Iterable.scala
+++ b/library/src/scala/collection/Iterable.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 import scala.annotation.nowarn
 import scala.annotation.unchecked.uncheckedVariance
 import scala.collection.mutable.Builder
diff --git a/library/src/scala/collection/IterableOnce.scala b/library/src/scala/collection/IterableOnce.scala
index 36e71277604a..dc37b97f56e1 100644
--- a/library/src/scala/collection/IterableOnce.scala
+++ b/library/src/scala/collection/IterableOnce.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 import scala.annotation.tailrec
 import scala.annotation.unchecked.uncheckedVariance
 import scala.collection.mutable.StringBuilder
diff --git a/library/src/scala/collection/Iterator.scala b/library/src/scala/collection/Iterator.scala
index 7c288bf58e9f..4fe61a3bc1cc 100644
--- a/library/src/scala/collection/Iterator.scala
+++ b/library/src/scala/collection/Iterator.scala
@@ -12,6 +12,7 @@
 
 package scala.collection
 
+import scala.language.`2`
 import scala.collection.mutable.{ArrayBuffer, ArrayBuilder, Builder, ImmutableBuilder}
 import scala.annotation.tailrec
 import scala.annotation.unchecked.uncheckedVariance
diff --git a/library/src/scala/collection/JavaConverters.scala b/library/src/scala/collection/JavaConverters.scala
index 7a803a685d3e..d3047b0c000c 100644
--- a/library/src/scala/collection/JavaConverters.scala
+++ b/library/src/scala/collection/JavaConverters.scala
@@ -12,6 +12,7 @@
 
 package scala.collection
 
+import scala.language.`2`
 import java.util.{concurrent => juc}
 import java.{lang => jl, util => ju}
 
diff --git a/library/src/scala/collection/LazyZipOps.scala b/library/src/scala/collection/LazyZipOps.scala
index a7a72ce882a8..2103ea8c6394 100644
--- a/library/src/scala/collection/LazyZipOps.scala
+++ b/library/src/scala/collection/LazyZipOps.scala
@@ -12,6 +12,7 @@
 
 package scala.collection
 
+import scala.language.`2`
 import scala.language.implicitConversions
 
 /** Decorator representing lazily zipped pairs.
diff --git a/library/src/scala/collection/LinearSeq.scala b/library/src/scala/collection/LinearSeq.scala
index 965edecdadc7..c7b17beb8fdf 100644
--- a/library/src/scala/collection/LinearSeq.scala
+++ b/library/src/scala/collection/LinearSeq.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 import scala.annotation.{nowarn, tailrec}
 
 /** Base trait for linearly accessed sequences that have efficient `head` and
diff --git a/library/src/scala/collection/Map.scala b/library/src/scala/collection/Map.scala
index 1b88058d3197..3836181eb342 100644
--- a/library/src/scala/collection/Map.scala
+++ b/library/src/scala/collection/Map.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 import scala.annotation.nowarn
 import scala.collection.generic.DefaultSerializable
 import scala.collection.mutable.StringBuilder
diff --git a/library/src/scala/collection/MapView.scala b/library/src/scala/collection/MapView.scala
index 39742c434c41..3dfb87fb5c42 100644
--- a/library/src/scala/collection/MapView.scala
+++ b/library/src/scala/collection/MapView.scala
@@ -12,6 +12,7 @@
 
 package scala.collection
 
+import scala.language.`2`
 import scala.annotation.nowarn
 import scala.collection.MapView.SomeMapOps
 import scala.collection.mutable.Builder
diff --git a/library/src/scala/collection/Searching.scala b/library/src/scala/collection/Searching.scala
index 8b8132870287..8d5f823e2bfc 100644
--- a/library/src/scala/collection/Searching.scala
+++ b/library/src/scala/collection/Searching.scala
@@ -12,6 +12,7 @@
 
 package scala.collection
 
+import scala.language.`2`
 import scala.language.implicitConversions
 import scala.collection.generic.IsSeq
 
diff --git a/library/src/scala/collection/Seq.scala b/library/src/scala/collection/Seq.scala
index 753d51b6a51d..9d3d6d3430a5 100644
--- a/library/src/scala/collection/Seq.scala
+++ b/library/src/scala/collection/Seq.scala
@@ -12,6 +12,7 @@
 
 package scala.collection
 
+import scala.language.`2`
 import scala.collection.immutable.Range
 import scala.util.hashing.MurmurHash3
 import Searching.{Found, InsertionPoint, SearchResult}
diff --git a/library/src/scala/collection/SeqMap.scala b/library/src/scala/collection/SeqMap.scala
index f2b65dfbfb6f..fe8f321ad78e 100644
--- a/library/src/scala/collection/SeqMap.scala
+++ b/library/src/scala/collection/SeqMap.scala
@@ -12,6 +12,7 @@
 
 package scala.collection
 
+import scala.language.`2`
 import scala.annotation.nowarn
 
 /**
diff --git a/library/src/scala/collection/SeqView.scala b/library/src/scala/collection/SeqView.scala
index a45797892220..5181f62fbb5e 100644
--- a/library/src/scala/collection/SeqView.scala
+++ b/library/src/scala/collection/SeqView.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 import scala.annotation.nowarn
 import scala.collection.generic.CommonErrors
 
diff --git a/library/src/scala/collection/Set.scala b/library/src/scala/collection/Set.scala
index bce5974ed5db..0ae870c658ce 100644
--- a/library/src/scala/collection/Set.scala
+++ b/library/src/scala/collection/Set.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 import scala.util.hashing.MurmurHash3
 import java.lang.String
 
diff --git a/library/src/scala/collection/SortedMap.scala b/library/src/scala/collection/SortedMap.scala
index d2ccb9e38aa9..7a1c92391e8a 100644
--- a/library/src/scala/collection/SortedMap.scala
+++ b/library/src/scala/collection/SortedMap.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 import scala.annotation.{implicitNotFound, nowarn}
 
 /** A Map whose keys are sorted according to a [[scala.math.Ordering]]*/
diff --git a/library/src/scala/collection/SortedOps.scala b/library/src/scala/collection/SortedOps.scala
index bd034fbf14d6..0fc0bb06692e 100644
--- a/library/src/scala/collection/SortedOps.scala
+++ b/library/src/scala/collection/SortedOps.scala
@@ -12,6 +12,7 @@
 
 package scala.collection
 
+import scala.language.`2`
 
 /** Base trait for sorted collections */
 trait SortedOps[A, +C] {
diff --git a/library/src/scala/collection/SortedSet.scala b/library/src/scala/collection/SortedSet.scala
index 37c28c260000..deaab1159d9a 100644
--- a/library/src/scala/collection/SortedSet.scala
+++ b/library/src/scala/collection/SortedSet.scala
@@ -12,6 +12,7 @@
 
 package scala.collection
 
+import scala.language.`2`
 import scala.annotation.{implicitNotFound, nowarn}
 import scala.annotation.unchecked.uncheckedVariance
 
diff --git a/library/src/scala/collection/Stepper.scala b/library/src/scala/collection/Stepper.scala
index f1355e8182c3..9a035b5a7115 100644
--- a/library/src/scala/collection/Stepper.scala
+++ b/library/src/scala/collection/Stepper.scala
@@ -12,6 +12,7 @@
 
 package scala.collection
 
+import scala.language.`2`
 import java.util.function.{Consumer, DoubleConsumer, IntConsumer, LongConsumer}
 import java.util.{PrimitiveIterator, Spliterator, Iterator => JIterator}
 import java.{lang => jl}
diff --git a/library/src/scala/collection/StepperShape.scala b/library/src/scala/collection/StepperShape.scala
index db8c00b47992..9215ce9ea215 100644
--- a/library/src/scala/collection/StepperShape.scala
+++ b/library/src/scala/collection/StepperShape.scala
@@ -14,6 +14,7 @@ package scala.collection
 
 import java.{lang => jl}
 
+import scala.language.`2`
 import scala.collection.Stepper.EfficientSplit
 
 /** An implicit StepperShape instance is used in the [[IterableOnce.stepper]] to return a possibly
diff --git a/library/src/scala/collection/StrictOptimizedIterableOps.scala b/library/src/scala/collection/StrictOptimizedIterableOps.scala
index 3260c1bc262e..4c22b95fd768 100644
--- a/library/src/scala/collection/StrictOptimizedIterableOps.scala
+++ b/library/src/scala/collection/StrictOptimizedIterableOps.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 import scala.annotation.nowarn
 import scala.annotation.unchecked.uncheckedVariance
 import scala.runtime.Statics
diff --git a/library/src/scala/collection/StrictOptimizedMapOps.scala b/library/src/scala/collection/StrictOptimizedMapOps.scala
index a87ba3ee9e20..2f29d99ad458 100644
--- a/library/src/scala/collection/StrictOptimizedMapOps.scala
+++ b/library/src/scala/collection/StrictOptimizedMapOps.scala
@@ -12,6 +12,8 @@
 
 package scala.collection
 
+import scala.language.`2`
+
 /**
   * Trait that overrides map operations to take advantage of strict builders.
   *
diff --git a/library/src/scala/collection/StrictOptimizedSeqOps.scala b/library/src/scala/collection/StrictOptimizedSeqOps.scala
index a131498d8b28..7185b29d1d04 100644
--- a/library/src/scala/collection/StrictOptimizedSeqOps.scala
+++ b/library/src/scala/collection/StrictOptimizedSeqOps.scala
@@ -12,6 +12,8 @@
 
 package scala.collection
 
+import scala.language.`2`
+
 /**
   * Trait that overrides operations on sequences in order
   * to take advantage of strict builders.
diff --git a/library/src/scala/collection/StrictOptimizedSetOps.scala b/library/src/scala/collection/StrictOptimizedSetOps.scala
index 39e585324f45..28033e38741c 100644
--- a/library/src/scala/collection/StrictOptimizedSetOps.scala
+++ b/library/src/scala/collection/StrictOptimizedSetOps.scala
@@ -12,6 +12,8 @@
 
 package scala.collection
 
+import scala.language.`2`
+
 /**
   * Trait that overrides set operations to take advantage of strict builders.
   *
diff --git a/library/src/scala/collection/StrictOptimizedSortedMapOps.scala b/library/src/scala/collection/StrictOptimizedSortedMapOps.scala
index 8317913c6d1b..6b5e23a7c9d1 100644
--- a/library/src/scala/collection/StrictOptimizedSortedMapOps.scala
+++ b/library/src/scala/collection/StrictOptimizedSortedMapOps.scala
@@ -12,6 +12,7 @@
 
 package scala.collection
 
+import scala.language.`2`
 import scala.annotation.implicitNotFound
 
 /**
diff --git a/library/src/scala/collection/StrictOptimizedSortedSetOps.scala b/library/src/scala/collection/StrictOptimizedSortedSetOps.scala
index c01b0d8466f3..7c8d6737f67f 100644
--- a/library/src/scala/collection/StrictOptimizedSortedSetOps.scala
+++ b/library/src/scala/collection/StrictOptimizedSortedSetOps.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 import scala.annotation.implicitNotFound
 import scala.annotation.unchecked.uncheckedVariance
 
diff --git a/library/src/scala/collection/StringOps.scala b/library/src/scala/collection/StringOps.scala
index f641c792156a..65737197e4c5 100644
--- a/library/src/scala/collection/StringOps.scala
+++ b/library/src/scala/collection/StringOps.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 import java.lang.{StringBuilder => JStringBuilder}
 
 import scala.collection.Stepper.EfficientSplit
diff --git a/library/src/scala/collection/StringParsers.scala b/library/src/scala/collection/StringParsers.scala
index 36108dc539da..b857f060fd0a 100644
--- a/library/src/scala/collection/StringParsers.scala
+++ b/library/src/scala/collection/StringParsers.scala
@@ -13,6 +13,7 @@
 package scala
 package collection
 
+import scala.language.`2`
 import scala.annotation.tailrec
 
 /** A module containing the implementations of parsers from strings to numeric types, and boolean
diff --git a/library/src/scala/collection/View.scala b/library/src/scala/collection/View.scala
index f304b8931f14..4d5622f7210b 100644
--- a/library/src/scala/collection/View.scala
+++ b/library/src/scala/collection/View.scala
@@ -12,6 +12,7 @@
 
 package scala.collection
 
+import scala.language.`2`
 import scala.annotation.{nowarn, tailrec}
 import scala.collection.mutable.{ArrayBuffer, Builder}
 import scala.collection.immutable.LazyList
diff --git a/library/src/scala/collection/WithFilter.scala b/library/src/scala/collection/WithFilter.scala
index 7a68275336ff..978e302fecc7 100644
--- a/library/src/scala/collection/WithFilter.scala
+++ b/library/src/scala/collection/WithFilter.scala
@@ -12,6 +12,8 @@
 
 package scala.collection
 
+import scala.language.`2`
+
 /** A template trait that contains just the `map`, `flatMap`, `foreach` and `withFilter` methods
   * of trait `Iterable`.
   *
diff --git a/library/src/scala/collection/concurrent/Map.scala b/library/src/scala/collection/concurrent/Map.scala
index 291f85513b58..6f5347124d5e 100644
--- a/library/src/scala/collection/concurrent/Map.scala
+++ b/library/src/scala/collection/concurrent/Map.scala
@@ -13,6 +13,7 @@
 package scala
 package collection.concurrent
 
+import scala.language.`2`
 import scala.annotation.tailrec
 
 /** A template trait for mutable maps that allow concurrent access.
diff --git a/library/src/scala/collection/concurrent/TrieMap.scala b/library/src/scala/collection/concurrent/TrieMap.scala
index ddc5379f1f25..2e92d12c2ecd 100644
--- a/library/src/scala/collection/concurrent/TrieMap.scala
+++ b/library/src/scala/collection/concurrent/TrieMap.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package concurrent
 
+import scala.language.`2`
 import java.util.concurrent.atomic._
 import scala.{unchecked => uc}
 import scala.annotation.tailrec
diff --git a/library/src/scala/collection/convert/AsJavaConverters.scala b/library/src/scala/collection/convert/AsJavaConverters.scala
index 2fc73da64fe7..39f34f131585 100644
--- a/library/src/scala/collection/convert/AsJavaConverters.scala
+++ b/library/src/scala/collection/convert/AsJavaConverters.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package convert
 
+import scala.language.`2`
 import java.util.{concurrent => juc}
 import java.{lang => jl, util => ju}
 
diff --git a/library/src/scala/collection/convert/AsJavaExtensions.scala b/library/src/scala/collection/convert/AsJavaExtensions.scala
index d356a419325d..f980c7094210 100644
--- a/library/src/scala/collection/convert/AsJavaExtensions.scala
+++ b/library/src/scala/collection/convert/AsJavaExtensions.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package convert
 
+import scala.language.`2`
 import java.util.{concurrent => juc}
 import java.{lang => jl, util => ju}
 
diff --git a/library/src/scala/collection/convert/AsScalaConverters.scala b/library/src/scala/collection/convert/AsScalaConverters.scala
index e1055c60b36e..626969690932 100644
--- a/library/src/scala/collection/convert/AsScalaConverters.scala
+++ b/library/src/scala/collection/convert/AsScalaConverters.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package convert
 
+import scala.language.`2`
 import java.util.{concurrent => juc}
 import java.{lang => jl, util => ju}
 
diff --git a/library/src/scala/collection/convert/AsScalaExtensions.scala b/library/src/scala/collection/convert/AsScalaExtensions.scala
index ef08f4505fe1..a23ecf3137b7 100644
--- a/library/src/scala/collection/convert/AsScalaExtensions.scala
+++ b/library/src/scala/collection/convert/AsScalaExtensions.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package convert
 
+import scala.language.`2`
 import java.util.{concurrent => juc}
 import java.{lang => jl, util => ju}
 
diff --git a/library/src/scala/collection/convert/ImplicitConversions.scala b/library/src/scala/collection/convert/ImplicitConversions.scala
index 6492c60d6d9e..807f85662812 100644
--- a/library/src/scala/collection/convert/ImplicitConversions.scala
+++ b/library/src/scala/collection/convert/ImplicitConversions.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package convert
 
+import scala.language.`2`
 import java.util.{concurrent => juc}
 import java.{lang => jl, util => ju}
 
diff --git a/library/src/scala/collection/convert/JavaCollectionWrappers.scala b/library/src/scala/collection/convert/JavaCollectionWrappers.scala
index f79adff98e23..0a9510bc1ad5 100644
--- a/library/src/scala/collection/convert/JavaCollectionWrappers.scala
+++ b/library/src/scala/collection/convert/JavaCollectionWrappers.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package convert
 
+import scala.language.`2`
 import java.util.{concurrent => juc}
 import java.util.{NavigableMap}
 import java.{lang => jl, util => ju}
diff --git a/library/src/scala/collection/convert/StreamExtensions.scala b/library/src/scala/collection/convert/StreamExtensions.scala
index 90b8bcb9031d..4a588b389c61 100644
--- a/library/src/scala/collection/convert/StreamExtensions.scala
+++ b/library/src/scala/collection/convert/StreamExtensions.scala
@@ -12,6 +12,7 @@
 
 package scala.collection.convert
 
+import scala.language.`2`
 import java.util.Spliterator
 import java.util.stream._
 import java.{lang => jl}
diff --git a/library/src/scala/collection/convert/impl/ArrayStepper.scala b/library/src/scala/collection/convert/impl/ArrayStepper.scala
index 4e8408bca99a..1ab6d98fd90e 100644
--- a/library/src/scala/collection/convert/impl/ArrayStepper.scala
+++ b/library/src/scala/collection/convert/impl/ArrayStepper.scala
@@ -13,6 +13,7 @@
 package scala.collection.convert
 package impl
 
+import scala.language.`2`
 import scala.collection._
 
 private[collection] class ObjectArrayStepper[A <: Object](underlying: Array[A], _i0: Int, _iN: Int)
diff --git a/library/src/scala/collection/convert/impl/BinaryTreeStepper.scala b/library/src/scala/collection/convert/impl/BinaryTreeStepper.scala
index d15977eced17..e126f03f3f6a 100644
--- a/library/src/scala/collection/convert/impl/BinaryTreeStepper.scala
+++ b/library/src/scala/collection/convert/impl/BinaryTreeStepper.scala
@@ -13,6 +13,7 @@
 package scala.collection.convert
 package impl
 
+import scala.language.`2`
 import java.util.Spliterator
 
 import annotation.tailrec
diff --git a/library/src/scala/collection/convert/impl/BitSetStepper.scala b/library/src/scala/collection/convert/impl/BitSetStepper.scala
index 905afaaf4a0d..2ee95c51b6ef 100644
--- a/library/src/scala/collection/convert/impl/BitSetStepper.scala
+++ b/library/src/scala/collection/convert/impl/BitSetStepper.scala
@@ -13,6 +13,7 @@
 package scala.collection.convert
 package impl
 
+import scala.language.`2`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.{BitSetOps, IntStepper, Stepper}
 
diff --git a/library/src/scala/collection/convert/impl/ChampStepper.scala b/library/src/scala/collection/convert/impl/ChampStepper.scala
index ddf7c34dc65a..33de8e3dbcfc 100644
--- a/library/src/scala/collection/convert/impl/ChampStepper.scala
+++ b/library/src/scala/collection/convert/impl/ChampStepper.scala
@@ -13,6 +13,7 @@
 package scala.collection.convert
 package impl
 
+import scala.language.`2`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection._
 import scala.collection.immutable.Node
diff --git a/library/src/scala/collection/convert/impl/InOrderStepperBase.scala b/library/src/scala/collection/convert/impl/InOrderStepperBase.scala
index 476b5c882177..2d1827248683 100644
--- a/library/src/scala/collection/convert/impl/InOrderStepperBase.scala
+++ b/library/src/scala/collection/convert/impl/InOrderStepperBase.scala
@@ -13,6 +13,7 @@
 package scala.collection.convert
 package impl
 
+import scala.language.`2`
 import java.util.Spliterator
 
 import scala.collection.Stepper.EfficientSplit
diff --git a/library/src/scala/collection/convert/impl/IndexedSeqStepper.scala b/library/src/scala/collection/convert/impl/IndexedSeqStepper.scala
index aa8fbe307278..51437629f75b 100644
--- a/library/src/scala/collection/convert/impl/IndexedSeqStepper.scala
+++ b/library/src/scala/collection/convert/impl/IndexedSeqStepper.scala
@@ -13,6 +13,7 @@
 package scala.collection.convert
 package impl
 
+import scala.language.`2`
 import scala.collection._
 
 private[collection] class AnyIndexedSeqStepper[A](underlying: collection.IndexedSeqOps[A, AnyConstr, _], _i0: Int, _iN: Int)
diff --git a/library/src/scala/collection/convert/impl/IndexedStepperBase.scala b/library/src/scala/collection/convert/impl/IndexedStepperBase.scala
index d2094dd30da6..b193590d6043 100644
--- a/library/src/scala/collection/convert/impl/IndexedStepperBase.scala
+++ b/library/src/scala/collection/convert/impl/IndexedStepperBase.scala
@@ -13,6 +13,7 @@
 package scala.collection.convert
 package impl
 
+import scala.language.`2`
 import java.util.Spliterator
 
 import scala.collection.Stepper.EfficientSplit
diff --git a/library/src/scala/collection/convert/impl/IteratorStepper.scala b/library/src/scala/collection/convert/impl/IteratorStepper.scala
index 8fac29cf96ae..41cb94b8452b 100644
--- a/library/src/scala/collection/convert/impl/IteratorStepper.scala
+++ b/library/src/scala/collection/convert/impl/IteratorStepper.scala
@@ -13,6 +13,7 @@
 package scala.collection.convert
 package impl
 
+import scala.language.`2`
 import java.util.Spliterator
 
 import scala.collection.{AnyStepper, DoubleStepper, IntStepper, LongStepper, Stepper}
diff --git a/library/src/scala/collection/convert/impl/NumericRangeStepper.scala b/library/src/scala/collection/convert/impl/NumericRangeStepper.scala
index 3a03f8fabf63..eafa21781bee 100644
--- a/library/src/scala/collection/convert/impl/NumericRangeStepper.scala
+++ b/library/src/scala/collection/convert/impl/NumericRangeStepper.scala
@@ -13,6 +13,7 @@
 package scala.collection.convert
 package impl
 
+import scala.language.`2`
 import scala.collection.{AnyStepper, IntStepper, LongStepper, Stepper}
 import scala.collection.immutable.NumericRange
 
diff --git a/library/src/scala/collection/convert/impl/RangeStepper.scala b/library/src/scala/collection/convert/impl/RangeStepper.scala
index 46f803151704..f2638e866286 100644
--- a/library/src/scala/collection/convert/impl/RangeStepper.scala
+++ b/library/src/scala/collection/convert/impl/RangeStepper.scala
@@ -13,6 +13,7 @@
 package scala.collection.convert
 package impl
 
+import scala.language.`2`
 import scala.collection.{IntStepper, Stepper}
 
 /** Implements Stepper on an integer Range.  You don't actually need the Range to do this,
diff --git a/library/src/scala/collection/convert/impl/StringStepper.scala b/library/src/scala/collection/convert/impl/StringStepper.scala
index e8c4d7073c43..fff945fe97ff 100644
--- a/library/src/scala/collection/convert/impl/StringStepper.scala
+++ b/library/src/scala/collection/convert/impl/StringStepper.scala
@@ -13,6 +13,7 @@
 package scala.collection.convert
 package impl
 
+import scala.language.`2`
 import java.lang.Character.{charCount, isLowSurrogate}
 import java.util.Spliterator
 
diff --git a/library/src/scala/collection/convert/impl/TableStepper.scala b/library/src/scala/collection/convert/impl/TableStepper.scala
index 2c144e4fae8f..6891d4179536 100644
--- a/library/src/scala/collection/convert/impl/TableStepper.scala
+++ b/library/src/scala/collection/convert/impl/TableStepper.scala
@@ -13,6 +13,7 @@
 package scala.collection.convert
 package impl
 
+import scala.language.`2`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection._
 
diff --git a/library/src/scala/collection/convert/impl/VectorStepper.scala b/library/src/scala/collection/convert/impl/VectorStepper.scala
index ca0d45330a70..e4e0c4270078 100644
--- a/library/src/scala/collection/convert/impl/VectorStepper.scala
+++ b/library/src/scala/collection/convert/impl/VectorStepper.scala
@@ -13,6 +13,7 @@
 package scala.collection.convert
 package impl
 
+import scala.language.`2`
 import scala.collection._
 
 private[convert] abstract class VectorStepperBase[Sub >: Null, Semi <: Sub](
diff --git a/library/src/scala/collection/generic/BitOperations.scala b/library/src/scala/collection/generic/BitOperations.scala
index 4464b4935d07..4f0c5d1db233 100644
--- a/library/src/scala/collection/generic/BitOperations.scala
+++ b/library/src/scala/collection/generic/BitOperations.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package generic
 
+import scala.language.`2`
 
 /** Some bit operations.
   *
diff --git a/library/src/scala/collection/generic/CommonErrors.scala b/library/src/scala/collection/generic/CommonErrors.scala
index e9f863643d27..c0b740e8afed 100644
--- a/library/src/scala/collection/generic/CommonErrors.scala
+++ b/library/src/scala/collection/generic/CommonErrors.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package generic
 
+import scala.language.`2`
 
 /** Some precomputed common errors to reduce the generated code size.
   */
diff --git a/library/src/scala/collection/generic/DefaultSerializationProxy.scala b/library/src/scala/collection/generic/DefaultSerializationProxy.scala
index 2e584eaa427d..028469e593a4 100644
--- a/library/src/scala/collection/generic/DefaultSerializationProxy.scala
+++ b/library/src/scala/collection/generic/DefaultSerializationProxy.scala
@@ -14,6 +14,7 @@ package scala.collection.generic
 
 import java.io.{ObjectInputStream, ObjectOutputStream}
 
+import scala.language.`2`
 import scala.collection.{Factory, Iterable}
 import scala.collection.mutable.Builder
 
diff --git a/library/src/scala/collection/generic/IsIterable.scala b/library/src/scala/collection/generic/IsIterable.scala
index 2260f0f2aacb..2b2da73d3564 100644
--- a/library/src/scala/collection/generic/IsIterable.scala
+++ b/library/src/scala/collection/generic/IsIterable.scala
@@ -13,6 +13,8 @@
 package scala.collection
 package generic
 
+import scala.language.`2`
+
 /** A trait which can be used to avoid code duplication when defining extension
  *  methods that should be applicable both to existing Scala collections (i.e.,
  *  types extending `Iterable`) as well as other (potentially user-defined)
diff --git a/library/src/scala/collection/generic/IsIterableOnce.scala b/library/src/scala/collection/generic/IsIterableOnce.scala
index 82f0ec8b7332..25772d42d509 100644
--- a/library/src/scala/collection/generic/IsIterableOnce.scala
+++ b/library/src/scala/collection/generic/IsIterableOnce.scala
@@ -14,6 +14,8 @@ package scala
 package collection
 package generic
 
+import scala.language.`2`
+
 /** Type class witnessing that a collection representation type `Repr` has
  *  elements of type `A` and has a conversion to `IterableOnce[A]`.
  *
diff --git a/library/src/scala/collection/generic/IsMap.scala b/library/src/scala/collection/generic/IsMap.scala
index 6178b2f2b7ca..b9cb7e0b4487 100644
--- a/library/src/scala/collection/generic/IsMap.scala
+++ b/library/src/scala/collection/generic/IsMap.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package generic
 
+import scala.language.`2`
 import IsMap.Tupled
 import scala.collection.immutable.{IntMap, LongMap}
 
diff --git a/library/src/scala/collection/generic/IsSeq.scala b/library/src/scala/collection/generic/IsSeq.scala
index 73d0cc9762d6..03bb02ed0054 100644
--- a/library/src/scala/collection/generic/IsSeq.scala
+++ b/library/src/scala/collection/generic/IsSeq.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package generic
 
+import scala.language.`2`
 import scala.reflect.ClassTag
 
 /** Type class witnessing that a collection representation type `Repr` has
diff --git a/library/src/scala/collection/generic/Subtractable.scala b/library/src/scala/collection/generic/Subtractable.scala
index f8af03581aad..4b69a5b53487 100644
--- a/library/src/scala/collection/generic/Subtractable.scala
+++ b/library/src/scala/collection/generic/Subtractable.scala
@@ -14,6 +14,8 @@ package scala
 package collection
 package generic
 
+import scala.language.`2`
+
 /** This trait represents collection-like objects that can be reduced
   *  using a '+' operator. It defines variants of `-` and `--`
   *  as convenience methods in terms of single-element removal `-`.
diff --git a/library/src/scala/collection/generic/package.scala b/library/src/scala/collection/generic/package.scala
index 5aaf90547384..c38e886dd646 100644
--- a/library/src/scala/collection/generic/package.scala
+++ b/library/src/scala/collection/generic/package.scala
@@ -12,6 +12,7 @@
 
 package scala.collection
 
+import scala.language.`2`
 
 package object generic {
   @deprecated("Clearable was moved from collection.generic to collection.mutable", "2.13.0")
diff --git a/library/src/scala/collection/immutable/ArraySeq.scala b/library/src/scala/collection/immutable/ArraySeq.scala
index eafe9baa719f..1e5fdad836fd 100644
--- a/library/src/scala/collection/immutable/ArraySeq.scala
+++ b/library/src/scala/collection/immutable/ArraySeq.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package immutable
 
+import scala.language.`2`
 import java.util.Arrays
 
 import scala.annotation.unchecked.uncheckedVariance
diff --git a/library/src/scala/collection/immutable/BitSet.scala b/library/src/scala/collection/immutable/BitSet.scala
index a9b5837ff566..06ecbfee48c1 100644
--- a/library/src/scala/collection/immutable/BitSet.scala
+++ b/library/src/scala/collection/immutable/BitSet.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
 import BitSetOps.{LogWL, updateArray}
 import mutable.Builder
 import scala.annotation.{implicitNotFound, nowarn}
diff --git a/library/src/scala/collection/immutable/ChampCommon.scala b/library/src/scala/collection/immutable/ChampCommon.scala
index 7b3e3949a126..1305ddbe8423 100644
--- a/library/src/scala/collection/immutable/ChampCommon.scala
+++ b/library/src/scala/collection/immutable/ChampCommon.scala
@@ -12,6 +12,7 @@
 
 package scala.collection.immutable
 
+import scala.language.`2`
 import scala.collection.AbstractIterator
 import java.lang.Integer.bitCount
 import java.lang.Math.ceil
diff --git a/library/src/scala/collection/immutable/HashMap.scala b/library/src/scala/collection/immutable/HashMap.scala
index e9257f1948fc..15596f1a35d8 100644
--- a/library/src/scala/collection/immutable/HashMap.scala
+++ b/library/src/scala/collection/immutable/HashMap.scala
@@ -13,6 +13,7 @@
 package scala
 package collection.immutable
 
+import scala.language.`2`
 import java.lang.Integer.bitCount
 import java.lang.System.arraycopy
 
diff --git a/library/src/scala/collection/immutable/HashSet.scala b/library/src/scala/collection/immutable/HashSet.scala
index 3c72236a5395..b92488c8c64a 100644
--- a/library/src/scala/collection/immutable/HashSet.scala
+++ b/library/src/scala/collection/immutable/HashSet.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
 import java.lang.Integer.{bitCount, numberOfTrailingZeros}
 import java.lang.System.arraycopy
 
diff --git a/library/src/scala/collection/immutable/IntMap.scala b/library/src/scala/collection/immutable/IntMap.scala
index 1aa1a6108d0c..f529028b4eb0 100644
--- a/library/src/scala/collection/immutable/IntMap.scala
+++ b/library/src/scala/collection/immutable/IntMap.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package immutable
 
+import scala.language.`2`
 import scala.collection.generic.{BitOperations, DefaultSerializationProxy}
 import scala.collection.mutable.{Builder, ImmutableBuilder}
 import scala.annotation.tailrec
diff --git a/library/src/scala/collection/immutable/Iterable.scala b/library/src/scala/collection/immutable/Iterable.scala
index a38c60ed8cc2..38a153725ffc 100644
--- a/library/src/scala/collection/immutable/Iterable.scala
+++ b/library/src/scala/collection/immutable/Iterable.scala
@@ -12,6 +12,7 @@
 
 package scala.collection.immutable
 
+import scala.language.`2`
 import scala.collection.{IterableFactory, IterableFactoryDefaults}
 
 /** A trait for collections that are guaranteed immutable.
diff --git a/library/src/scala/collection/immutable/LazyList.scala b/library/src/scala/collection/immutable/LazyList.scala
index 72425cf7045a..403560818bd9 100644
--- a/library/src/scala/collection/immutable/LazyList.scala
+++ b/library/src/scala/collection/immutable/LazyList.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
 import java.io.{ObjectInputStream, ObjectOutputStream}
 import java.lang.{StringBuilder => JStringBuilder}
 
diff --git a/library/src/scala/collection/immutable/List.scala b/library/src/scala/collection/immutable/List.scala
index d6651f417103..4d5a91068a67 100644
--- a/library/src/scala/collection/immutable/List.scala
+++ b/library/src/scala/collection/immutable/List.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
 import scala.annotation.unchecked.uncheckedVariance
 import scala.annotation.tailrec
 import mutable.{Builder, ListBuffer}
diff --git a/library/src/scala/collection/immutable/ListMap.scala b/library/src/scala/collection/immutable/ListMap.scala
index 74d1697cac7f..5585e12c3948 100644
--- a/library/src/scala/collection/immutable/ListMap.scala
+++ b/library/src/scala/collection/immutable/ListMap.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
 import scala.annotation.{nowarn, tailrec}
 import scala.collection.mutable.ReusableBuilder
 import scala.collection.generic.DefaultSerializable
diff --git a/library/src/scala/collection/immutable/ListSet.scala b/library/src/scala/collection/immutable/ListSet.scala
index 2e2758cb2747..f8a18e0b531d 100644
--- a/library/src/scala/collection/immutable/ListSet.scala
+++ b/library/src/scala/collection/immutable/ListSet.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
 import mutable.{Builder, ImmutableBuilder}
 import scala.annotation.tailrec
 import scala.collection.generic.DefaultSerializable
diff --git a/library/src/scala/collection/immutable/LongMap.scala b/library/src/scala/collection/immutable/LongMap.scala
index 8ff968f58305..ceb7aca9e9db 100644
--- a/library/src/scala/collection/immutable/LongMap.scala
+++ b/library/src/scala/collection/immutable/LongMap.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package immutable
 
+import scala.language.`2`
 import java.lang.IllegalStateException
 
 import scala.collection.generic.{BitOperations, DefaultSerializationProxy}
diff --git a/library/src/scala/collection/immutable/Map.scala b/library/src/scala/collection/immutable/Map.scala
index 8f372312512e..533344398fdf 100644
--- a/library/src/scala/collection/immutable/Map.scala
+++ b/library/src/scala/collection/immutable/Map.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
 import scala.annotation.unchecked.uncheckedVariance
 import scala.collection.generic.DefaultSerializable
 import scala.collection.immutable.Map.Map4
diff --git a/library/src/scala/collection/immutable/NumericRange.scala b/library/src/scala/collection/immutable/NumericRange.scala
index 78efb2adafca..3db5d771a295 100644
--- a/library/src/scala/collection/immutable/NumericRange.scala
+++ b/library/src/scala/collection/immutable/NumericRange.scala
@@ -12,6 +12,7 @@
 
 package scala.collection.immutable
 
+import scala.language.`2`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.{AbstractIterator, AnyStepper, IterableFactoryDefaults, Iterator, Stepper, StepperShape}
 import scala.collection.generic.CommonErrors
diff --git a/library/src/scala/collection/immutable/Queue.scala b/library/src/scala/collection/immutable/Queue.scala
index 89def7096aea..591abef5facb 100644
--- a/library/src/scala/collection/immutable/Queue.scala
+++ b/library/src/scala/collection/immutable/Queue.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package immutable
 
+import scala.language.`2`
 import scala.collection.generic.DefaultSerializable
 import scala.collection.mutable.{Builder, ListBuffer}
 
diff --git a/library/src/scala/collection/immutable/Range.scala b/library/src/scala/collection/immutable/Range.scala
index 9a35153ace64..409e1ee52b19 100644
--- a/library/src/scala/collection/immutable/Range.scala
+++ b/library/src/scala/collection/immutable/Range.scala
@@ -13,6 +13,7 @@
 package scala
 package collection.immutable
 
+import scala.language.`2`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.convert.impl.RangeStepper
 import scala.collection.generic.CommonErrors
diff --git a/library/src/scala/collection/immutable/RedBlackTree.scala b/library/src/scala/collection/immutable/RedBlackTree.scala
index 33f7d9ceb7e2..e4b0c2c800e4 100644
--- a/library/src/scala/collection/immutable/RedBlackTree.scala
+++ b/library/src/scala/collection/immutable/RedBlackTree.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
 import scala.annotation.meta.{getter, setter}
 import scala.annotation.tailrec
 import scala.runtime.Statics.releaseFence
diff --git a/library/src/scala/collection/immutable/Seq.scala b/library/src/scala/collection/immutable/Seq.scala
index 81a40c1c375b..e1f52ff832b1 100644
--- a/library/src/scala/collection/immutable/Seq.scala
+++ b/library/src/scala/collection/immutable/Seq.scala
@@ -14,6 +14,8 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
+
 trait Seq[+A] extends Iterable[A]
                  with collection.Seq[A]
                  with SeqOps[A, Seq, Seq[A]]
diff --git a/library/src/scala/collection/immutable/SeqMap.scala b/library/src/scala/collection/immutable/SeqMap.scala
index 03daef1481a8..74932227b227 100644
--- a/library/src/scala/collection/immutable/SeqMap.scala
+++ b/library/src/scala/collection/immutable/SeqMap.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
 import scala.collection.mutable.{Builder, ReusableBuilder}
 
 /** A base trait for ordered, immutable maps.
diff --git a/library/src/scala/collection/immutable/Set.scala b/library/src/scala/collection/immutable/Set.scala
index e8509b58016e..f9fc47f61240 100644
--- a/library/src/scala/collection/immutable/Set.scala
+++ b/library/src/scala/collection/immutable/Set.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
 import scala.collection.immutable.Set.Set4
 import scala.collection.mutable.{Builder, ReusableBuilder}
 
diff --git a/library/src/scala/collection/immutable/SortedMap.scala b/library/src/scala/collection/immutable/SortedMap.scala
index 120ae23ae024..ec4e1b70037a 100644
--- a/library/src/scala/collection/immutable/SortedMap.scala
+++ b/library/src/scala/collection/immutable/SortedMap.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
 import scala.annotation.unchecked.uncheckedVariance
 import scala.collection.mutable.Builder
 
diff --git a/library/src/scala/collection/immutable/SortedSet.scala b/library/src/scala/collection/immutable/SortedSet.scala
index 2eda00ac6b2f..8f70edbb1da0 100644
--- a/library/src/scala/collection/immutable/SortedSet.scala
+++ b/library/src/scala/collection/immutable/SortedSet.scala
@@ -14,6 +14,8 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
+
 /** Base trait for sorted sets */
 trait SortedSet[A]
   extends Set[A]
diff --git a/library/src/scala/collection/immutable/Stream.scala b/library/src/scala/collection/immutable/Stream.scala
index 898a988735c6..7ee4530228fa 100644
--- a/library/src/scala/collection/immutable/Stream.scala
+++ b/library/src/scala/collection/immutable/Stream.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
 import java.io.{ObjectInputStream, ObjectOutputStream}
 import java.lang.{StringBuilder => JStringBuilder}
 
diff --git a/library/src/scala/collection/immutable/StrictOptimizedSeqOps.scala b/library/src/scala/collection/immutable/StrictOptimizedSeqOps.scala
index 90b803d54e70..15ea9c37e3c9 100644
--- a/library/src/scala/collection/immutable/StrictOptimizedSeqOps.scala
+++ b/library/src/scala/collection/immutable/StrictOptimizedSeqOps.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
 import scala.collection.generic.CommonErrors
 
 /** Trait that overrides operations to take advantage of strict builders.
diff --git a/library/src/scala/collection/immutable/TreeMap.scala b/library/src/scala/collection/immutable/TreeMap.scala
index 970e9a174440..e0db92f81505 100644
--- a/library/src/scala/collection/immutable/TreeMap.scala
+++ b/library/src/scala/collection/immutable/TreeMap.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
 import scala.annotation.tailrec
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.generic.DefaultSerializable
diff --git a/library/src/scala/collection/immutable/TreeSeqMap.scala b/library/src/scala/collection/immutable/TreeSeqMap.scala
index 4eaa8487b6ff..a744ebfaddaf 100644
--- a/library/src/scala/collection/immutable/TreeSeqMap.scala
+++ b/library/src/scala/collection/immutable/TreeSeqMap.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
 import scala.annotation.tailrec
 
 /** This class implements an immutable map that preserves order using
diff --git a/library/src/scala/collection/immutable/TreeSet.scala b/library/src/scala/collection/immutable/TreeSet.scala
index 4348f62ece74..ebf16f37e5c3 100644
--- a/library/src/scala/collection/immutable/TreeSet.scala
+++ b/library/src/scala/collection/immutable/TreeSet.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.generic.DefaultSerializable
 import scala.collection.mutable.ReusableBuilder
diff --git a/library/src/scala/collection/immutable/Vector.scala b/library/src/scala/collection/immutable/Vector.scala
index f38cdbc77b5d..30272b3aedbd 100644
--- a/library/src/scala/collection/immutable/Vector.scala
+++ b/library/src/scala/collection/immutable/Vector.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package immutable
 
+import scala.language.`2`
 import java.lang.Math.{abs, max => mmax, min => mmin}
 import java.util.Arrays.{copyOf, copyOfRange}
 import java.util.{Arrays, Spliterator}
diff --git a/library/src/scala/collection/immutable/VectorMap.scala b/library/src/scala/collection/immutable/VectorMap.scala
index 361427a86c53..b3052639c3b6 100644
--- a/library/src/scala/collection/immutable/VectorMap.scala
+++ b/library/src/scala/collection/immutable/VectorMap.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package immutable
 
+import scala.language.`2`
 import scala.annotation.{nowarn, tailrec}
 
 /** This class implements immutable maps using a vector/map-based data structure, which preserves insertion order.
diff --git a/library/src/scala/collection/immutable/WrappedString.scala b/library/src/scala/collection/immutable/WrappedString.scala
index a6c0256fe800..2cbe5d273e4f 100644
--- a/library/src/scala/collection/immutable/WrappedString.scala
+++ b/library/src/scala/collection/immutable/WrappedString.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package immutable
 
+import scala.language.`2`
 import scala.Predef.{wrapString => _, assert}
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.convert.impl.CharStringStepper
diff --git a/library/src/scala/collection/immutable/package.scala b/library/src/scala/collection/immutable/package.scala
index 6a92c8cef284..93a8593f134a 100644
--- a/library/src/scala/collection/immutable/package.scala
+++ b/library/src/scala/collection/immutable/package.scala
@@ -12,6 +12,7 @@
 
 package scala.collection
 
+import scala.language.`2`
 
 package object immutable {
   type StringOps = scala.collection.StringOps
diff --git a/library/src/scala/collection/mutable/AnyRefMap.scala b/library/src/scala/collection/mutable/AnyRefMap.scala
index 9ad433309b10..2964926a823e 100644
--- a/library/src/scala/collection/mutable/AnyRefMap.scala
+++ b/library/src/scala/collection/mutable/AnyRefMap.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package mutable
 
+import scala.language.`2`
 import scala.annotation.meta.companionClass
 import scala.annotation.nowarn
 import scala.collection.generic.DefaultSerializationProxy
diff --git a/library/src/scala/collection/mutable/ArrayBuffer.scala b/library/src/scala/collection/mutable/ArrayBuffer.scala
index bc0f39af6829..b788aac7aeb2 100644
--- a/library/src/scala/collection/mutable/ArrayBuffer.scala
+++ b/library/src/scala/collection/mutable/ArrayBuffer.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package mutable
 
+import scala.language.`2`
 import java.util.Arrays
 import scala.annotation.{nowarn, tailrec}
 import scala.collection.Stepper.EfficientSplit
diff --git a/library/src/scala/collection/mutable/ArrayBuilder.scala b/library/src/scala/collection/mutable/ArrayBuilder.scala
index e962dd024836..48b62468f2bb 100644
--- a/library/src/scala/collection/mutable/ArrayBuilder.scala
+++ b/library/src/scala/collection/mutable/ArrayBuilder.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package mutable
 
+import scala.language.`2`
 import scala.collection.mutable.ArrayBuffer.resizeUp
 import scala.reflect.ClassTag
 
diff --git a/library/src/scala/collection/mutable/ArrayDeque.scala b/library/src/scala/collection/mutable/ArrayDeque.scala
index ca70f31d1869..0060e5eaaea8 100644
--- a/library/src/scala/collection/mutable/ArrayDeque.scala
+++ b/library/src/scala/collection/mutable/ArrayDeque.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package mutable
 
+import scala.language.`2`
 import scala.annotation.nowarn
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.generic.{CommonErrors, DefaultSerializable}
diff --git a/library/src/scala/collection/mutable/ArraySeq.scala b/library/src/scala/collection/mutable/ArraySeq.scala
index 0537092d0b13..364fd1cd3a09 100644
--- a/library/src/scala/collection/mutable/ArraySeq.scala
+++ b/library/src/scala/collection/mutable/ArraySeq.scala
@@ -12,6 +12,8 @@
 
 package scala.collection
 package mutable
+
+import scala.language.`2`
 import java.util.Arrays
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.convert.impl._
diff --git a/library/src/scala/collection/mutable/BitSet.scala b/library/src/scala/collection/mutable/BitSet.scala
index ba77d7161a0b..069d47a681a6 100644
--- a/library/src/scala/collection/mutable/BitSet.scala
+++ b/library/src/scala/collection/mutable/BitSet.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package mutable
 
+import scala.language.`2`
 import scala.collection.immutable.Range
 import BitSetOps.{LogWL, MaxSize}
 import scala.annotation.implicitNotFound
diff --git a/library/src/scala/collection/mutable/Buffer.scala b/library/src/scala/collection/mutable/Buffer.scala
index 2ec13c1fdbc5..10518eb9ec6a 100644
--- a/library/src/scala/collection/mutable/Buffer.scala
+++ b/library/src/scala/collection/mutable/Buffer.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package mutable
 
+import scala.language.`2`
 import scala.annotation.nowarn
 
 
diff --git a/library/src/scala/collection/mutable/Builder.scala b/library/src/scala/collection/mutable/Builder.scala
index e59fc8639104..1b07c97cbfc1 100644
--- a/library/src/scala/collection/mutable/Builder.scala
+++ b/library/src/scala/collection/mutable/Builder.scala
@@ -12,6 +12,8 @@
 
 package scala.collection.mutable
 
+import scala.language.`2`
+
 /** Base trait for collection builders.
   *
   * After calling `result()` the behavior of a Builder (which is not also a [[scala.collection.mutable.ReusableBuilder]])
diff --git a/library/src/scala/collection/mutable/CheckedIndexedSeqView.scala b/library/src/scala/collection/mutable/CheckedIndexedSeqView.scala
index 6953dd0ed660..947ea94b95cf 100644
--- a/library/src/scala/collection/mutable/CheckedIndexedSeqView.scala
+++ b/library/src/scala/collection/mutable/CheckedIndexedSeqView.scala
@@ -14,6 +14,8 @@ package scala
 package collection
 package mutable
 
+import scala.language.`2`
+
 private[mutable] trait CheckedIndexedSeqView[+A] extends IndexedSeqView[A] {
   protected val mutationCount: () => Int
 
diff --git a/library/src/scala/collection/mutable/Cloneable.scala b/library/src/scala/collection/mutable/Cloneable.scala
index 5c11faea155e..39ec0d7abd56 100644
--- a/library/src/scala/collection/mutable/Cloneable.scala
+++ b/library/src/scala/collection/mutable/Cloneable.scala
@@ -12,6 +12,7 @@
 
 package scala.collection.mutable
 
+import scala.language.`2`
 
 /** A trait for cloneable collections.
   *
diff --git a/library/src/scala/collection/mutable/CollisionProofHashMap.scala b/library/src/scala/collection/mutable/CollisionProofHashMap.scala
index f56e679df2d2..d8d4429a8263 100644
--- a/library/src/scala/collection/mutable/CollisionProofHashMap.scala
+++ b/library/src/scala/collection/mutable/CollisionProofHashMap.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package mutable
 
+import scala.language.`2`
 import scala.{unchecked => uc}
 import scala.annotation.{implicitNotFound, tailrec, unused}
 import scala.annotation.unchecked.uncheckedVariance
diff --git a/library/src/scala/collection/mutable/Growable.scala b/library/src/scala/collection/mutable/Growable.scala
index b2d4806089dc..9dad685fc9e6 100644
--- a/library/src/scala/collection/mutable/Growable.scala
+++ b/library/src/scala/collection/mutable/Growable.scala
@@ -14,6 +14,8 @@ package scala
 package collection
 package mutable
 
+import scala.language.`2`
+
 /** This trait forms part of collections that can be augmented
   * using a `+=` operator and that can be cleared of all elements using
   * a `clear` method.
diff --git a/library/src/scala/collection/mutable/GrowableBuilder.scala b/library/src/scala/collection/mutable/GrowableBuilder.scala
index 247bc58da150..dea1846e25f5 100644
--- a/library/src/scala/collection/mutable/GrowableBuilder.scala
+++ b/library/src/scala/collection/mutable/GrowableBuilder.scala
@@ -13,6 +13,7 @@
 package scala
 package collection.mutable
 
+import scala.language.`2`
 
 /** The canonical builder for collections that are growable, i.e. that support an
   * efficient `+=` method which adds an element to the collection.
diff --git a/library/src/scala/collection/mutable/HashMap.scala b/library/src/scala/collection/mutable/HashMap.scala
index 86aa9541c4e3..afa475a3704d 100644
--- a/library/src/scala/collection/mutable/HashMap.scala
+++ b/library/src/scala/collection/mutable/HashMap.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package mutable
 
+import scala.language.`2`
 import scala.annotation.{nowarn, tailrec}
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.generic.DefaultSerializationProxy
diff --git a/library/src/scala/collection/mutable/HashSet.scala b/library/src/scala/collection/mutable/HashSet.scala
index 9f0abbfa6cfd..1314c7ac41dc 100644
--- a/library/src/scala/collection/mutable/HashSet.scala
+++ b/library/src/scala/collection/mutable/HashSet.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package mutable
 
+import scala.language.`2`
 import scala.annotation.tailrec
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.generic.DefaultSerializationProxy
diff --git a/library/src/scala/collection/mutable/HashTable.scala b/library/src/scala/collection/mutable/HashTable.scala
index d58f6e01b7ac..7831854c8fdb 100644
--- a/library/src/scala/collection/mutable/HashTable.scala
+++ b/library/src/scala/collection/mutable/HashTable.scala
@@ -13,6 +13,7 @@
 package scala
 package collection.mutable
 
+import scala.language.`2`
 import collection.{AbstractIterator, Iterator}
 
 import java.lang.Integer.{numberOfLeadingZeros, rotateRight}
diff --git a/library/src/scala/collection/mutable/ImmutableBuilder.scala b/library/src/scala/collection/mutable/ImmutableBuilder.scala
index 3907cfd55305..613b54f7024f 100644
--- a/library/src/scala/collection/mutable/ImmutableBuilder.scala
+++ b/library/src/scala/collection/mutable/ImmutableBuilder.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package mutable
 
+import scala.language.`2`
 
 /**
   * Reusable builder for immutable collections
diff --git a/library/src/scala/collection/mutable/IndexedSeq.scala b/library/src/scala/collection/mutable/IndexedSeq.scala
index 464bc00d45db..ac57d3f35903 100644
--- a/library/src/scala/collection/mutable/IndexedSeq.scala
+++ b/library/src/scala/collection/mutable/IndexedSeq.scala
@@ -13,6 +13,8 @@
 package scala.collection
 package mutable
 
+import scala.language.`2`
+
 trait IndexedSeq[T] extends Seq[T]
   with scala.collection.IndexedSeq[T]
   with IndexedSeqOps[T, IndexedSeq, IndexedSeq[T]]
diff --git a/library/src/scala/collection/mutable/Iterable.scala b/library/src/scala/collection/mutable/Iterable.scala
index c84d0e6ec675..d686a8f3c66f 100644
--- a/library/src/scala/collection/mutable/Iterable.scala
+++ b/library/src/scala/collection/mutable/Iterable.scala
@@ -12,6 +12,7 @@
 
 package scala.collection.mutable
 
+import scala.language.`2`
 import scala.collection.{IterableFactory, IterableFactoryDefaults}
 
 trait Iterable[A]
diff --git a/library/src/scala/collection/mutable/LinkedHashMap.scala b/library/src/scala/collection/mutable/LinkedHashMap.scala
index d529fee42596..e0d8288be713 100644
--- a/library/src/scala/collection/mutable/LinkedHashMap.scala
+++ b/library/src/scala/collection/mutable/LinkedHashMap.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package mutable
 
+import scala.language.`2`
 import scala.annotation.{nowarn, tailrec}
 import scala.collection.generic.DefaultSerializable
 import scala.util.hashing.MurmurHash3
diff --git a/library/src/scala/collection/mutable/LinkedHashSet.scala b/library/src/scala/collection/mutable/LinkedHashSet.scala
index 1a189d607010..29cadfabd1fb 100644
--- a/library/src/scala/collection/mutable/LinkedHashSet.scala
+++ b/library/src/scala/collection/mutable/LinkedHashSet.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package mutable
 
+import scala.language.`2`
 import scala.annotation.{nowarn, tailrec}
 import scala.collection.generic.DefaultSerializable
 import scala.util.hashing.MurmurHash3
diff --git a/library/src/scala/collection/mutable/ListBuffer.scala b/library/src/scala/collection/mutable/ListBuffer.scala
index 273704592abd..ec8f9e4a708e 100644
--- a/library/src/scala/collection/mutable/ListBuffer.scala
+++ b/library/src/scala/collection/mutable/ListBuffer.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package mutable
 
+import scala.language.`2`
 import scala.annotation.{nowarn, tailrec}
 import scala.collection.generic.CommonErrors
 import scala.collection.immutable.{::, List, Nil}
diff --git a/library/src/scala/collection/mutable/ListMap.scala b/library/src/scala/collection/mutable/ListMap.scala
index e1a273bfd5af..bf13e11b8110 100644
--- a/library/src/scala/collection/mutable/ListMap.scala
+++ b/library/src/scala/collection/mutable/ListMap.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package mutable
 
+import scala.language.`2`
 import scala.annotation.tailrec
 import scala.collection.generic.DefaultSerializable
 import scala.collection.immutable.List
diff --git a/library/src/scala/collection/mutable/LongMap.scala b/library/src/scala/collection/mutable/LongMap.scala
index e36c337437e3..bbebe81a7ee3 100644
--- a/library/src/scala/collection/mutable/LongMap.scala
+++ b/library/src/scala/collection/mutable/LongMap.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package mutable
 
+import scala.language.`2`
 import scala.collection.generic.DefaultSerializationProxy
 import scala.language.implicitConversions
 
diff --git a/library/src/scala/collection/mutable/Map.scala b/library/src/scala/collection/mutable/Map.scala
index 8659b45e86e6..641204d18668 100644
--- a/library/src/scala/collection/mutable/Map.scala
+++ b/library/src/scala/collection/mutable/Map.scala
@@ -14,6 +14,8 @@ package scala
 package collection
 package mutable
 
+import scala.language.`2`
+
 /** Base type of mutable Maps */
 trait Map[K, V]
   extends Iterable[(K, V)]
diff --git a/library/src/scala/collection/mutable/MultiMap.scala b/library/src/scala/collection/mutable/MultiMap.scala
index b06a99b15d51..d15bca1fb2bd 100644
--- a/library/src/scala/collection/mutable/MultiMap.scala
+++ b/library/src/scala/collection/mutable/MultiMap.scala
@@ -12,6 +12,7 @@
 
 package scala.collection.mutable
 
+import scala.language.`2`
 
 /** A trait for mutable maps with multiple values assigned to a key.
   *
diff --git a/library/src/scala/collection/mutable/MutationTracker.scala b/library/src/scala/collection/mutable/MutationTracker.scala
index fe0314068a43..ea9d4f7efebf 100644
--- a/library/src/scala/collection/mutable/MutationTracker.scala
+++ b/library/src/scala/collection/mutable/MutationTracker.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package mutable
 
+import scala.language.`2`
 import java.util.ConcurrentModificationException
 
 /**
diff --git a/library/src/scala/collection/mutable/OpenHashMap.scala b/library/src/scala/collection/mutable/OpenHashMap.scala
index 5840a0abc954..99b470dc7837 100644
--- a/library/src/scala/collection/mutable/OpenHashMap.scala
+++ b/library/src/scala/collection/mutable/OpenHashMap.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package mutable
 
+import scala.language.`2`
 import java.lang.Integer.numberOfLeadingZeros
 import java.util.ConcurrentModificationException
 import scala.collection.generic.DefaultSerializable
diff --git a/library/src/scala/collection/mutable/PriorityQueue.scala b/library/src/scala/collection/mutable/PriorityQueue.scala
index 147cffc22a95..14a15c2e159b 100644
--- a/library/src/scala/collection/mutable/PriorityQueue.scala
+++ b/library/src/scala/collection/mutable/PriorityQueue.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package mutable
 
+import scala.language.`2`
 import scala.collection.generic.DefaultSerializationProxy
 import scala.math.Ordering
 
diff --git a/library/src/scala/collection/mutable/Queue.scala b/library/src/scala/collection/mutable/Queue.scala
index cc3dad2e2495..39b685092ccc 100644
--- a/library/src/scala/collection/mutable/Queue.scala
+++ b/library/src/scala/collection/mutable/Queue.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package mutable
 
+import scala.language.`2`
 import scala.annotation.nowarn
 import scala.collection.generic.DefaultSerializable
 
diff --git a/library/src/scala/collection/mutable/RedBlackTree.scala b/library/src/scala/collection/mutable/RedBlackTree.scala
index aca36f0271d8..3a5c5709af0b 100644
--- a/library/src/scala/collection/mutable/RedBlackTree.scala
+++ b/library/src/scala/collection/mutable/RedBlackTree.scala
@@ -13,6 +13,7 @@
 package scala
 package collection.mutable
 
+import scala.language.`2`
 import scala.annotation.tailrec
 import collection.{AbstractIterator, Iterator}
 import java.lang.String
diff --git a/library/src/scala/collection/mutable/ReusableBuilder.scala b/library/src/scala/collection/mutable/ReusableBuilder.scala
index c8565d6953f1..624cc5e6a2ce 100644
--- a/library/src/scala/collection/mutable/ReusableBuilder.scala
+++ b/library/src/scala/collection/mutable/ReusableBuilder.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package mutable
 
+import scala.language.`2`
 
 /** `ReusableBuilder` is a marker trait that indicates that a `Builder`
   *  can be reused to build more than one instance of a collection.  In
diff --git a/library/src/scala/collection/mutable/Seq.scala b/library/src/scala/collection/mutable/Seq.scala
index afabb834a63f..842c13a1d422 100644
--- a/library/src/scala/collection/mutable/Seq.scala
+++ b/library/src/scala/collection/mutable/Seq.scala
@@ -12,6 +12,7 @@
 
 package scala.collection.mutable
 
+import scala.language.`2`
 import scala.collection.{IterableFactoryDefaults, SeqFactory}
 
 trait Seq[A]
diff --git a/library/src/scala/collection/mutable/SeqMap.scala b/library/src/scala/collection/mutable/SeqMap.scala
index dda2c47c3447..6932b380cc50 100644
--- a/library/src/scala/collection/mutable/SeqMap.scala
+++ b/library/src/scala/collection/mutable/SeqMap.scala
@@ -14,6 +14,8 @@ package scala
 package collection
 package mutable
 
+import scala.language.`2`
+
 /**
   * A generic trait for ordered mutable maps. Concrete classes have to provide
   * functionality for the abstract methods in `SeqMap`.
diff --git a/library/src/scala/collection/mutable/Set.scala b/library/src/scala/collection/mutable/Set.scala
index cede5411a349..8539c9ea5442 100644
--- a/library/src/scala/collection/mutable/Set.scala
+++ b/library/src/scala/collection/mutable/Set.scala
@@ -12,6 +12,7 @@
 
 package scala.collection.mutable
 
+import scala.language.`2`
 import scala.collection.{IterableFactory, IterableFactoryDefaults, IterableOps}
 
 /** Base trait for mutable sets */
diff --git a/library/src/scala/collection/mutable/Shrinkable.scala b/library/src/scala/collection/mutable/Shrinkable.scala
index acf1b4bf42ac..9386db587b93 100644
--- a/library/src/scala/collection/mutable/Shrinkable.scala
+++ b/library/src/scala/collection/mutable/Shrinkable.scala
@@ -13,6 +13,7 @@
 package scala
 package collection.mutable
 
+import scala.language.`2`
 import scala.annotation.tailrec
 
 /** This trait forms part of collections that can be reduced
diff --git a/library/src/scala/collection/mutable/SortedMap.scala b/library/src/scala/collection/mutable/SortedMap.scala
index 1884840f91e2..72196167bb16 100644
--- a/library/src/scala/collection/mutable/SortedMap.scala
+++ b/library/src/scala/collection/mutable/SortedMap.scala
@@ -13,6 +13,7 @@
 package scala
 package collection.mutable
 
+import scala.language.`2`
 import scala.collection.{SortedMapFactory, SortedMapFactoryDefaults}
 
 /**
diff --git a/library/src/scala/collection/mutable/SortedSet.scala b/library/src/scala/collection/mutable/SortedSet.scala
index 7faf70b87cdc..fa1e8147ca27 100644
--- a/library/src/scala/collection/mutable/SortedSet.scala
+++ b/library/src/scala/collection/mutable/SortedSet.scala
@@ -14,6 +14,8 @@ package scala
 package collection
 package mutable
 
+import scala.language.`2`
+
 /** Base type for mutable sorted set collections
  */
 trait SortedSet[A]
diff --git a/library/src/scala/collection/mutable/Stack.scala b/library/src/scala/collection/mutable/Stack.scala
index 01aacc22c65e..299fe73bd174 100644
--- a/library/src/scala/collection/mutable/Stack.scala
+++ b/library/src/scala/collection/mutable/Stack.scala
@@ -12,6 +12,7 @@
 
 package scala.collection.mutable
 
+import scala.language.`2`
 import scala.annotation.{migration, nowarn}
 import scala.collection.generic.DefaultSerializable
 import scala.collection.{IterableFactoryDefaults, IterableOnce, SeqFactory, StrictOptimizedSeqFactory, StrictOptimizedSeqOps}
diff --git a/library/src/scala/collection/mutable/StringBuilder.scala b/library/src/scala/collection/mutable/StringBuilder.scala
index ad9755389c48..873b7f3df061 100644
--- a/library/src/scala/collection/mutable/StringBuilder.scala
+++ b/library/src/scala/collection/mutable/StringBuilder.scala
@@ -12,6 +12,7 @@
 
 package scala.collection.mutable
 
+import scala.language.`2`
 import scala.collection.{IterableFactoryDefaults, IterableOnce}
 import scala.collection.immutable.WrappedString
 
diff --git a/library/src/scala/collection/mutable/TreeMap.scala b/library/src/scala/collection/mutable/TreeMap.scala
index 076239278299..371dad2a2a67 100644
--- a/library/src/scala/collection/mutable/TreeMap.scala
+++ b/library/src/scala/collection/mutable/TreeMap.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package mutable
 
+import scala.language.`2`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.generic.DefaultSerializable
 import scala.collection.mutable.{RedBlackTree => RB}
diff --git a/library/src/scala/collection/mutable/TreeSet.scala b/library/src/scala/collection/mutable/TreeSet.scala
index 9820af9037ca..a1f044ba791f 100644
--- a/library/src/scala/collection/mutable/TreeSet.scala
+++ b/library/src/scala/collection/mutable/TreeSet.scala
@@ -13,6 +13,7 @@
 package scala
 package collection.mutable
 
+import scala.language.`2`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.generic.DefaultSerializable
 import scala.collection.mutable.{RedBlackTree => RB}
diff --git a/library/src/scala/collection/mutable/UnrolledBuffer.scala b/library/src/scala/collection/mutable/UnrolledBuffer.scala
index 4aecac001505..c71735c5915f 100644
--- a/library/src/scala/collection/mutable/UnrolledBuffer.scala
+++ b/library/src/scala/collection/mutable/UnrolledBuffer.scala
@@ -13,6 +13,7 @@
 package scala.collection
 package mutable
 
+import scala.language.`2`
 import scala.annotation.tailrec
 import scala.collection.generic.{CommonErrors, DefaultSerializable}
 import scala.reflect.ClassTag
diff --git a/library/src/scala/collection/mutable/WeakHashMap.scala b/library/src/scala/collection/mutable/WeakHashMap.scala
index ae0230c8ab83..7ac917a90f6c 100644
--- a/library/src/scala/collection/mutable/WeakHashMap.scala
+++ b/library/src/scala/collection/mutable/WeakHashMap.scala
@@ -14,6 +14,7 @@ package scala
 package collection
 package mutable
 
+import scala.language.`2`
 import scala.annotation.nowarn
 import scala.collection.convert.JavaCollectionWrappers.{JMapWrapper, JMapWrapperLike}
 
diff --git a/library/src/scala/collection/mutable/package.scala b/library/src/scala/collection/mutable/package.scala
index 4ad5df4813d8..0499055b0dc4 100644
--- a/library/src/scala/collection/mutable/package.scala
+++ b/library/src/scala/collection/mutable/package.scala
@@ -12,6 +12,7 @@
 
 package scala.collection
 
+import scala.language.`2`
 
 package object mutable {
   @deprecated("Use ArraySeq instead of WrappedArray; it can represent both, boxed and unboxed arrays", "2.13.0")
diff --git a/library/src/scala/collection/package.scala b/library/src/scala/collection/package.scala
index f6a89b5c288c..4ce27ca11cf2 100644
--- a/library/src/scala/collection/package.scala
+++ b/library/src/scala/collection/package.scala
@@ -12,6 +12,8 @@
 
 package scala
 
+import scala.language.`2`
+
 package object collection {
   @deprecated("Use Iterable instead of Traversable", "2.13.0")
   type Traversable[+X] = Iterable[X]

From 1cbd1922cb33b5b5fa4bac72e2c40976982cf1ee Mon Sep 17 00:00:00 2001
From: Hamza Remmal <hamza@remmal.net>
Date: Mon, 5 May 2025 18:32:11 +0200
Subject: [PATCH 15/15] chore: rename the import to `scala.language.2.13` in
 library

---
 library/src/scala/AnyVal.scala                                  | 2 +-
 library/src/scala/AnyValCompanion.scala                         | 2 +-
 library/src/scala/App.scala                                     | 2 +-
 library/src/scala/Array.scala                                   | 2 +-
 library/src/scala/Boolean.scala                                 | 2 +-
 library/src/scala/Byte.scala                                    | 2 +-
 library/src/scala/Char.scala                                    | 2 +-
 library/src/scala/Console.scala                                 | 2 +-
 library/src/scala/DelayedInit.scala                             | 2 +-
 library/src/scala/Double.scala                                  | 2 +-
 library/src/scala/DummyImplicit.scala                           | 2 +-
 library/src/scala/Dynamic.scala                                 | 2 +-
 library/src/scala/Enumeration.scala                             | 2 +-
 library/src/scala/Equals.scala                                  | 2 +-
 library/src/scala/Float.scala                                   | 2 +-
 library/src/scala/Function.scala                                | 2 +-
 library/src/scala/Function0.scala                               | 2 +-
 library/src/scala/Function1.scala                               | 2 +-
 library/src/scala/Function10.scala                              | 2 +-
 library/src/scala/Function11.scala                              | 2 +-
 library/src/scala/Function12.scala                              | 2 +-
 library/src/scala/Function13.scala                              | 2 +-
 library/src/scala/Function14.scala                              | 2 +-
 library/src/scala/Function15.scala                              | 2 +-
 library/src/scala/Function16.scala                              | 2 +-
 library/src/scala/Function17.scala                              | 2 +-
 library/src/scala/Function18.scala                              | 2 +-
 library/src/scala/Function19.scala                              | 2 +-
 library/src/scala/Function2.scala                               | 2 +-
 library/src/scala/Function20.scala                              | 2 +-
 library/src/scala/Function21.scala                              | 2 +-
 library/src/scala/Function22.scala                              | 2 +-
 library/src/scala/Function3.scala                               | 2 +-
 library/src/scala/Function4.scala                               | 2 +-
 library/src/scala/Function5.scala                               | 2 +-
 library/src/scala/Function6.scala                               | 2 +-
 library/src/scala/Function7.scala                               | 2 +-
 library/src/scala/Function8.scala                               | 2 +-
 library/src/scala/Function9.scala                               | 2 +-
 library/src/scala/Int.scala                                     | 2 +-
 library/src/scala/Long.scala                                    | 2 +-
 library/src/scala/MatchError.scala                              | 2 +-
 library/src/scala/NotImplementedError.scala                     | 2 +-
 library/src/scala/Option.scala                                  | 2 +-
 library/src/scala/PartialFunction.scala                         | 2 +-
 library/src/scala/Predef.scala                                  | 2 +-
 library/src/scala/Product.scala                                 | 2 +-
 library/src/scala/Product1.scala                                | 2 +-
 library/src/scala/Product10.scala                               | 2 +-
 library/src/scala/Product11.scala                               | 2 +-
 library/src/scala/Product12.scala                               | 2 +-
 library/src/scala/Product13.scala                               | 2 +-
 library/src/scala/Product14.scala                               | 2 +-
 library/src/scala/Product15.scala                               | 2 +-
 library/src/scala/Product16.scala                               | 2 +-
 library/src/scala/Product17.scala                               | 2 +-
 library/src/scala/Product18.scala                               | 2 +-
 library/src/scala/Product19.scala                               | 2 +-
 library/src/scala/Product2.scala                                | 2 +-
 library/src/scala/Product20.scala                               | 2 +-
 library/src/scala/Product21.scala                               | 2 +-
 library/src/scala/Product22.scala                               | 2 +-
 library/src/scala/Product3.scala                                | 2 +-
 library/src/scala/Product4.scala                                | 2 +-
 library/src/scala/Product5.scala                                | 2 +-
 library/src/scala/Product6.scala                                | 2 +-
 library/src/scala/Product7.scala                                | 2 +-
 library/src/scala/Product8.scala                                | 2 +-
 library/src/scala/Product9.scala                                | 2 +-
 library/src/scala/Proxy.scala                                   | 2 +-
 library/src/scala/SerialVersionUID.scala                        | 2 +-
 library/src/scala/Short.scala                                   | 2 +-
 library/src/scala/Specializable.scala                           | 2 +-
 library/src/scala/StringContext.scala                           | 2 +-
 library/src/scala/Symbol.scala                                  | 2 +-
 library/src/scala/Tuple1.scala                                  | 2 +-
 library/src/scala/Tuple10.scala                                 | 2 +-
 library/src/scala/Tuple11.scala                                 | 2 +-
 library/src/scala/Tuple12.scala                                 | 2 +-
 library/src/scala/Tuple13.scala                                 | 2 +-
 library/src/scala/Tuple14.scala                                 | 2 +-
 library/src/scala/Tuple15.scala                                 | 2 +-
 library/src/scala/Tuple16.scala                                 | 2 +-
 library/src/scala/Tuple17.scala                                 | 2 +-
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 library/src/scala/collection/StrictOptimizedSetOps.scala        | 2 +-
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 library/src/scala/collection/convert/AsJavaConverters.scala     | 2 +-
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 .../src/scala/collection/convert/JavaCollectionWrappers.scala   | 2 +-
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 .../src/scala/collection/convert/impl/BinaryTreeStepper.scala   | 2 +-
 library/src/scala/collection/convert/impl/BitSetStepper.scala   | 2 +-
 library/src/scala/collection/convert/impl/ChampStepper.scala    | 2 +-
 .../src/scala/collection/convert/impl/InOrderStepperBase.scala  | 2 +-
 .../src/scala/collection/convert/impl/IndexedSeqStepper.scala   | 2 +-
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 .../src/scala/collection/convert/impl/NumericRangeStepper.scala | 2 +-
 library/src/scala/collection/convert/impl/RangeStepper.scala    | 2 +-
 library/src/scala/collection/convert/impl/StringStepper.scala   | 2 +-
 library/src/scala/collection/convert/impl/TableStepper.scala    | 2 +-
 library/src/scala/collection/convert/impl/VectorStepper.scala   | 2 +-
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 .../scala/collection/generic/DefaultSerializationProxy.scala    | 2 +-
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 library/src/scala/collection/generic/IsMap.scala                | 2 +-
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 library/src/scala/collection/generic/Subtractable.scala         | 2 +-
 library/src/scala/collection/generic/package.scala              | 2 +-
 library/src/scala/collection/immutable/ArraySeq.scala           | 2 +-
 library/src/scala/collection/immutable/BitSet.scala             | 2 +-
 library/src/scala/collection/immutable/ChampCommon.scala        | 2 +-
 library/src/scala/collection/immutable/HashMap.scala            | 2 +-
 library/src/scala/collection/immutable/HashSet.scala            | 2 +-
 library/src/scala/collection/immutable/IntMap.scala             | 2 +-
 library/src/scala/collection/immutable/Iterable.scala           | 2 +-
 library/src/scala/collection/immutable/LazyList.scala           | 2 +-
 library/src/scala/collection/immutable/List.scala               | 2 +-
 library/src/scala/collection/immutable/ListMap.scala            | 2 +-
 library/src/scala/collection/immutable/ListSet.scala            | 2 +-
 library/src/scala/collection/immutable/LongMap.scala            | 2 +-
 library/src/scala/collection/immutable/Map.scala                | 2 +-
 library/src/scala/collection/immutable/NumericRange.scala       | 2 +-
 library/src/scala/collection/immutable/Queue.scala              | 2 +-
 library/src/scala/collection/immutable/Range.scala              | 2 +-
 library/src/scala/collection/immutable/RedBlackTree.scala       | 2 +-
 library/src/scala/collection/immutable/Seq.scala                | 2 +-
 library/src/scala/collection/immutable/SeqMap.scala             | 2 +-
 library/src/scala/collection/immutable/Set.scala                | 2 +-
 library/src/scala/collection/immutable/SortedMap.scala          | 2 +-
 library/src/scala/collection/immutable/SortedSet.scala          | 2 +-
 library/src/scala/collection/immutable/Stream.scala             | 2 +-
 .../src/scala/collection/immutable/StrictOptimizedSeqOps.scala  | 2 +-
 library/src/scala/collection/immutable/TreeMap.scala            | 2 +-
 library/src/scala/collection/immutable/TreeSeqMap.scala         | 2 +-
 library/src/scala/collection/immutable/TreeSet.scala            | 2 +-
 library/src/scala/collection/immutable/Vector.scala             | 2 +-
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 library/src/scala/collection/immutable/WrappedString.scala      | 2 +-
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 .../src/scala/collection/mutable/CheckedIndexedSeqView.scala    | 2 +-
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 library/src/scala/collection/mutable/GrowableBuilder.scala      | 2 +-
 library/src/scala/collection/mutable/HashMap.scala              | 2 +-
 library/src/scala/collection/mutable/HashSet.scala              | 2 +-
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 library/src/scala/collection/mutable/ImmutableBuilder.scala     | 2 +-
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 library/src/scala/collection/mutable/Iterable.scala             | 2 +-
 library/src/scala/collection/mutable/LinkedHashMap.scala        | 2 +-
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 library/src/scala/collection/mutable/ListMap.scala              | 2 +-
 library/src/scala/collection/mutable/LongMap.scala              | 2 +-
 library/src/scala/collection/mutable/Map.scala                  | 2 +-
 library/src/scala/collection/mutable/MultiMap.scala             | 2 +-
 library/src/scala/collection/mutable/MutationTracker.scala      | 2 +-
 library/src/scala/collection/mutable/OpenHashMap.scala          | 2 +-
 library/src/scala/collection/mutable/PriorityQueue.scala        | 2 +-
 library/src/scala/collection/mutable/Queue.scala                | 2 +-
 library/src/scala/collection/mutable/RedBlackTree.scala         | 2 +-
 library/src/scala/collection/mutable/ReusableBuilder.scala      | 2 +-
 library/src/scala/collection/mutable/Seq.scala                  | 2 +-
 library/src/scala/collection/mutable/SeqMap.scala               | 2 +-
 library/src/scala/collection/mutable/Set.scala                  | 2 +-
 library/src/scala/collection/mutable/Shrinkable.scala           | 2 +-
 library/src/scala/collection/mutable/SortedMap.scala            | 2 +-
 library/src/scala/collection/mutable/SortedSet.scala            | 2 +-
 library/src/scala/collection/mutable/Stack.scala                | 2 +-
 library/src/scala/collection/mutable/StringBuilder.scala        | 2 +-
 library/src/scala/collection/mutable/TreeMap.scala              | 2 +-
 library/src/scala/collection/mutable/TreeSet.scala              | 2 +-
 library/src/scala/collection/mutable/UnrolledBuffer.scala       | 2 +-
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 library/src/scala/collection/mutable/package.scala              | 2 +-
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 library/src/scala/compat/Platform.scala                         | 2 +-
 library/src/scala/concurrent/Awaitable.scala                    | 2 +-
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 library/src/scala/jdk/package.scala                             | 2 +-
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 library/src/scala/math/BigDecimal.scala                         | 2 +-
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 library/src/scala/math/Integral.scala                           | 2 +-
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 library/src/scala/runtime/AbstractFunction0.scala               | 2 +-
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 library/src/scala/runtime/java8/JFunction2$mcFDI$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcFDJ$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcFID$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcFII$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcFIJ$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcFJD$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcFJI$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcFJJ$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcIDD$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcIDI$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcIDJ$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcIID$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcIII$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcIIJ$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcIJD$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcIJI$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcIJJ$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcJDD$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcJDI$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcJDJ$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcJID$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcJII$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcJIJ$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcJJD$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcJJI$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcJJJ$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcVDD$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcVDI$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcVDJ$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcVID$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcVII$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcVIJ$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcVJD$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcVJI$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcVJJ$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcZDD$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcZDI$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcZDJ$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcZID$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcZII$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcZIJ$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcZJD$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcZJI$sp.scala       | 2 +-
 library/src/scala/runtime/java8/JFunction2$mcZJJ$sp.scala       | 2 +-
 library/src/scala/specialized.scala                             | 2 +-
 library/src/scala/sys/BooleanProp.scala                         | 2 +-
 library/src/scala/sys/Prop.scala                                | 2 +-
 library/src/scala/sys/PropImpl.scala                            | 2 +-
 library/src/scala/sys/ShutdownHookThread.scala                  | 2 +-
 library/src/scala/sys/SystemProperties.scala                    | 2 +-
 library/src/scala/sys/package.scala                             | 2 +-
 library/src/scala/sys/process/BasicIO.scala                     | 2 +-
 library/src/scala/sys/process/Parser.scala                      | 2 +-
 library/src/scala/sys/process/Process.scala                     | 2 +-
 library/src/scala/sys/process/ProcessBuilder.scala              | 2 +-
 library/src/scala/sys/process/ProcessBuilderImpl.scala          | 2 +-
 library/src/scala/sys/process/ProcessIO.scala                   | 2 +-
 library/src/scala/sys/process/ProcessImpl.scala                 | 2 +-
 library/src/scala/sys/process/ProcessLogger.scala               | 2 +-
 library/src/scala/sys/process/package.scala                     | 2 +-
 library/src/scala/throws.scala                                  | 2 +-
 library/src/scala/transient.scala                               | 2 +-
 library/src/scala/typeConstraints.scala                         | 2 +-
 library/src/scala/unchecked.scala                               | 2 +-
 library/src/scala/util/ChainingOps.scala                        | 2 +-
 library/src/scala/util/DynamicVariable.scala                    | 2 +-
 library/src/scala/util/Either.scala                             | 2 +-
 library/src/scala/util/Properties.scala                         | 2 +-
 library/src/scala/util/Random.scala                             | 2 +-
 library/src/scala/util/Sorting.scala                            | 2 +-
 library/src/scala/util/Try.scala                                | 2 +-
 library/src/scala/util/Using.scala                              | 2 +-
 library/src/scala/util/control/Breaks.scala                     | 2 +-
 library/src/scala/util/control/ControlThrowable.scala           | 2 +-
 library/src/scala/util/control/Exception.scala                  | 2 +-
 library/src/scala/util/control/NoStackTrace.scala               | 2 +-
 library/src/scala/util/control/NonFatal.scala                   | 2 +-
 library/src/scala/util/control/TailCalls.scala                  | 2 +-
 library/src/scala/util/hashing/ByteswapHashing.scala            | 2 +-
 library/src/scala/util/hashing/Hashing.scala                    | 2 +-
 library/src/scala/util/hashing/MurmurHash3.scala                | 2 +-
 library/src/scala/util/hashing/package.scala                    | 2 +-
 library/src/scala/util/matching/Regex.scala                     | 2 +-
 library/src/scala/util/package.scala                            | 2 +-
 library/src/scala/volatile.scala                                | 2 +-
 540 files changed, 540 insertions(+), 540 deletions(-)

diff --git a/library/src/scala/AnyVal.scala b/library/src/scala/AnyVal.scala
index 8744bfc32537..1c8e098c28fd 100644
--- a/library/src/scala/AnyVal.scala
+++ b/library/src/scala/AnyVal.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** `AnyVal` is the root class of all ''value types'', which describe values
  *  not implemented as objects in the underlying host system. Value classes
diff --git a/library/src/scala/AnyValCompanion.scala b/library/src/scala/AnyValCompanion.scala
index 0e319836e0e6..a2e4225208ae 100644
--- a/library/src/scala/AnyValCompanion.scala
+++ b/library/src/scala/AnyValCompanion.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A common supertype for companion classes of primitive types.
  *
diff --git a/library/src/scala/App.scala b/library/src/scala/App.scala
index 6529d520ce2b..75b0a0c78adf 100644
--- a/library/src/scala/App.scala
+++ b/library/src/scala/App.scala
@@ -14,7 +14,7 @@ package scala
 
 import java.lang.System.{currentTimeMillis => currentTime}
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 import scala.annotation.nowarn
 import scala.collection.mutable.ListBuffer
diff --git a/library/src/scala/Array.scala b/library/src/scala/Array.scala
index c90ec6d3c66b..8daa1859cf44 100644
--- a/library/src/scala/Array.scala
+++ b/library/src/scala/Array.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 //import scala.collection.generic._
 import scala.collection.{Factory, immutable, mutable}
diff --git a/library/src/scala/Boolean.scala b/library/src/scala/Boolean.scala
index faf57580f5bf..5ff37694d133 100644
--- a/library/src/scala/Boolean.scala
+++ b/library/src/scala/Boolean.scala
@@ -16,7 +16,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** `Boolean` (equivalent to Java's `boolean` primitive type) is a
  *  subtype of [[scala.AnyVal]]. Instances of `Boolean` are not
diff --git a/library/src/scala/Byte.scala b/library/src/scala/Byte.scala
index 2dc16cd2be25..c5891be37e36 100644
--- a/library/src/scala/Byte.scala
+++ b/library/src/scala/Byte.scala
@@ -16,7 +16,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** `Byte`, a 8-bit signed integer (equivalent to Java's `byte` primitive type) is a
  *  subtype of [[scala.AnyVal]]. Instances of `Byte` are not
diff --git a/library/src/scala/Char.scala b/library/src/scala/Char.scala
index 61e4a35b91b9..500ffcb05412 100644
--- a/library/src/scala/Char.scala
+++ b/library/src/scala/Char.scala
@@ -16,7 +16,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** `Char`, a 16-bit unsigned integer (equivalent to Java's `char` primitive type) is a
  *  subtype of [[scala.AnyVal]]. Instances of `Char` are not
diff --git a/library/src/scala/Console.scala b/library/src/scala/Console.scala
index 39548a782530..0c89da155b65 100644
--- a/library/src/scala/Console.scala
+++ b/library/src/scala/Console.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 import java.io.{ BufferedReader, InputStream, InputStreamReader, OutputStream, PrintStream, Reader }
 import scala.io.AnsiColor
diff --git a/library/src/scala/DelayedInit.scala b/library/src/scala/DelayedInit.scala
index 6423a7609553..abcb86274051 100644
--- a/library/src/scala/DelayedInit.scala
+++ b/library/src/scala/DelayedInit.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Classes and objects (but note, not traits) inheriting the `DelayedInit`
  *  marker trait will have their initialization code rewritten as follows:
diff --git a/library/src/scala/Double.scala b/library/src/scala/Double.scala
index ebe7ae7a36df..08a91bf8c603 100644
--- a/library/src/scala/Double.scala
+++ b/library/src/scala/Double.scala
@@ -16,7 +16,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** `Double`, a 64-bit IEEE-754 floating point number (equivalent to Java's `double` primitive type) is a
  *  subtype of [[scala.AnyVal]]. Instances of `Double` are not
diff --git a/library/src/scala/DummyImplicit.scala b/library/src/scala/DummyImplicit.scala
index 64c612819984..9e542ccb1d7b 100644
--- a/library/src/scala/DummyImplicit.scala
+++ b/library/src/scala/DummyImplicit.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A type for which there is always an implicit value. */
 final class DummyImplicit private ()
diff --git a/library/src/scala/Dynamic.scala b/library/src/scala/Dynamic.scala
index 3709a3ce27e0..bb4e44f78912 100644
--- a/library/src/scala/Dynamic.scala
+++ b/library/src/scala/Dynamic.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A marker trait that enables dynamic invocations. Instances `x` of this
  *  trait allow method invocations `x.meth(args)` for arbitrary method
diff --git a/library/src/scala/Enumeration.scala b/library/src/scala/Enumeration.scala
index 58ed48ac917d..b527fd3fc2fb 100644
--- a/library/src/scala/Enumeration.scala
+++ b/library/src/scala/Enumeration.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 import scala.collection.{SpecificIterableFactory, StrictOptimizedIterableOps, View, immutable, mutable}
 import java.lang.reflect.{Field => JField, Method => JMethod}
diff --git a/library/src/scala/Equals.scala b/library/src/scala/Equals.scala
index 35738821658b..04dc3db6b7d9 100644
--- a/library/src/scala/Equals.scala
+++ b/library/src/scala/Equals.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** An interface containing operations for equality.
  *  The only method not already present in class `AnyRef` is `canEqual`.
diff --git a/library/src/scala/Float.scala b/library/src/scala/Float.scala
index 7e0c41ce7b79..fae92d99e882 100644
--- a/library/src/scala/Float.scala
+++ b/library/src/scala/Float.scala
@@ -16,7 +16,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** `Float`, a 32-bit IEEE-754 floating point number (equivalent to Java's `float` primitive type) is a
  *  subtype of [[scala.AnyVal]]. Instances of `Float` are not
diff --git a/library/src/scala/Function.scala b/library/src/scala/Function.scala
index f57ebe871c6d..28061026c000 100644
--- a/library/src/scala/Function.scala
+++ b/library/src/scala/Function.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A module defining utility methods for higher-order functional programming.
  */
diff --git a/library/src/scala/Function0.scala b/library/src/scala/Function0.scala
index 1353d393ac55..af9327e6e88c 100644
--- a/library/src/scala/Function0.scala
+++ b/library/src/scala/Function0.scala
@@ -15,7 +15,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 0 parameters.
  *  
diff --git a/library/src/scala/Function1.scala b/library/src/scala/Function1.scala
index 5bdb2b73edd1..b31ed60766d5 100644
--- a/library/src/scala/Function1.scala
+++ b/library/src/scala/Function1.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Function1 {
 
diff --git a/library/src/scala/Function10.scala b/library/src/scala/Function10.scala
index e22424c83a37..c362ea877732 100644
--- a/library/src/scala/Function10.scala
+++ b/library/src/scala/Function10.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 10 parameters.
  *
diff --git a/library/src/scala/Function11.scala b/library/src/scala/Function11.scala
index 190cd39d8126..1706470355c3 100644
--- a/library/src/scala/Function11.scala
+++ b/library/src/scala/Function11.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 11 parameters.
  *
diff --git a/library/src/scala/Function12.scala b/library/src/scala/Function12.scala
index 11bc4a805ca6..5ccaa7722095 100644
--- a/library/src/scala/Function12.scala
+++ b/library/src/scala/Function12.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 12 parameters.
  *
diff --git a/library/src/scala/Function13.scala b/library/src/scala/Function13.scala
index 442bde0a3425..a92b6710bbfb 100644
--- a/library/src/scala/Function13.scala
+++ b/library/src/scala/Function13.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 13 parameters.
  *
diff --git a/library/src/scala/Function14.scala b/library/src/scala/Function14.scala
index c9d388c1efbe..687a3e693766 100644
--- a/library/src/scala/Function14.scala
+++ b/library/src/scala/Function14.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 14 parameters.
  *
diff --git a/library/src/scala/Function15.scala b/library/src/scala/Function15.scala
index f38da1c29d79..c45cae4e1a97 100644
--- a/library/src/scala/Function15.scala
+++ b/library/src/scala/Function15.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 15 parameters.
  *
diff --git a/library/src/scala/Function16.scala b/library/src/scala/Function16.scala
index 804e406eb98d..8795ccfbd546 100644
--- a/library/src/scala/Function16.scala
+++ b/library/src/scala/Function16.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 16 parameters.
  *
diff --git a/library/src/scala/Function17.scala b/library/src/scala/Function17.scala
index a68259f0d086..874ea3bcd9fc 100644
--- a/library/src/scala/Function17.scala
+++ b/library/src/scala/Function17.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 17 parameters.
  *
diff --git a/library/src/scala/Function18.scala b/library/src/scala/Function18.scala
index bf0265c42e62..4fa20a649416 100644
--- a/library/src/scala/Function18.scala
+++ b/library/src/scala/Function18.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 18 parameters.
  *
diff --git a/library/src/scala/Function19.scala b/library/src/scala/Function19.scala
index c8314ee95561..c59e32b4ae40 100644
--- a/library/src/scala/Function19.scala
+++ b/library/src/scala/Function19.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 19 parameters.
  *
diff --git a/library/src/scala/Function2.scala b/library/src/scala/Function2.scala
index 2d952275ac08..ccb066fb9f3a 100644
--- a/library/src/scala/Function2.scala
+++ b/library/src/scala/Function2.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 2 parameters.
  *  
diff --git a/library/src/scala/Function20.scala b/library/src/scala/Function20.scala
index db85af6a3bbc..1b445f783310 100644
--- a/library/src/scala/Function20.scala
+++ b/library/src/scala/Function20.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 20 parameters.
  *
diff --git a/library/src/scala/Function21.scala b/library/src/scala/Function21.scala
index 6d5fbd64544f..e5e3047da3b3 100644
--- a/library/src/scala/Function21.scala
+++ b/library/src/scala/Function21.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 21 parameters.
  *
diff --git a/library/src/scala/Function22.scala b/library/src/scala/Function22.scala
index 3695b49756f5..9eae1d43ce26 100644
--- a/library/src/scala/Function22.scala
+++ b/library/src/scala/Function22.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 22 parameters.
  *
diff --git a/library/src/scala/Function3.scala b/library/src/scala/Function3.scala
index c5592307807d..5c29f6e4fbbd 100644
--- a/library/src/scala/Function3.scala
+++ b/library/src/scala/Function3.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 3 parameters.
  *
diff --git a/library/src/scala/Function4.scala b/library/src/scala/Function4.scala
index 96f8775ac88a..efc3c56909eb 100644
--- a/library/src/scala/Function4.scala
+++ b/library/src/scala/Function4.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 4 parameters.
  *
diff --git a/library/src/scala/Function5.scala b/library/src/scala/Function5.scala
index 331635dfecc3..a0e4b082c728 100644
--- a/library/src/scala/Function5.scala
+++ b/library/src/scala/Function5.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 5 parameters.
  *
diff --git a/library/src/scala/Function6.scala b/library/src/scala/Function6.scala
index 0d8bb0d03538..58d428c8e888 100644
--- a/library/src/scala/Function6.scala
+++ b/library/src/scala/Function6.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 6 parameters.
  *
diff --git a/library/src/scala/Function7.scala b/library/src/scala/Function7.scala
index cadc9a27b220..8f4bfa19aa9d 100644
--- a/library/src/scala/Function7.scala
+++ b/library/src/scala/Function7.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 7 parameters.
  *
diff --git a/library/src/scala/Function8.scala b/library/src/scala/Function8.scala
index a23434667b0c..384f6132d1a5 100644
--- a/library/src/scala/Function8.scala
+++ b/library/src/scala/Function8.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 8 parameters.
  *
diff --git a/library/src/scala/Function9.scala b/library/src/scala/Function9.scala
index 49ba56da8daf..a60f59f0f25d 100644
--- a/library/src/scala/Function9.scala
+++ b/library/src/scala/Function9.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A function of 9 parameters.
  *
diff --git a/library/src/scala/Int.scala b/library/src/scala/Int.scala
index 2cd806736a06..335e33233541 100644
--- a/library/src/scala/Int.scala
+++ b/library/src/scala/Int.scala
@@ -16,7 +16,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** `Int`, a 32-bit signed integer (equivalent to Java's `int` primitive type) is a
  *  subtype of [[scala.AnyVal]]. Instances of `Int` are not
diff --git a/library/src/scala/Long.scala b/library/src/scala/Long.scala
index 45c0e836d6bb..e19b7e706f96 100644
--- a/library/src/scala/Long.scala
+++ b/library/src/scala/Long.scala
@@ -16,7 +16,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** `Long`, a 64-bit signed integer (equivalent to Java's `long` primitive type) is a
  *  subtype of [[scala.AnyVal]]. Instances of `Long` are not
diff --git a/library/src/scala/MatchError.scala b/library/src/scala/MatchError.scala
index 42e150357ed3..7e6bcc480d8c 100644
--- a/library/src/scala/MatchError.scala
+++ b/library/src/scala/MatchError.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** This class implements errors which are thrown whenever an
  *  object doesn't match any pattern of a pattern matching
diff --git a/library/src/scala/NotImplementedError.scala b/library/src/scala/NotImplementedError.scala
index dec377cf20af..b77d08b22bee 100644
--- a/library/src/scala/NotImplementedError.scala
+++ b/library/src/scala/NotImplementedError.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Throwing this exception can be a temporary replacement for a method
  *  body that remains to be implemented. For instance, the exception is thrown by
diff --git a/library/src/scala/Option.scala b/library/src/scala/Option.scala
index 339fa84aba31..894eade2445a 100644
--- a/library/src/scala/Option.scala
+++ b/library/src/scala/Option.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Option {
 
diff --git a/library/src/scala/PartialFunction.scala b/library/src/scala/PartialFunction.scala
index bb79b7b15501..af8199d6209e 100644
--- a/library/src/scala/PartialFunction.scala
+++ b/library/src/scala/PartialFunction.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.nowarn
 
 /** A partial function of type `PartialFunction[A, B]` is a unary function
diff --git a/library/src/scala/Predef.scala b/library/src/scala/Predef.scala
index 6a5f57e29200..9a1e90865070 100644
--- a/library/src/scala/Predef.scala
+++ b/library/src/scala/Predef.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.language.implicitConversions
 
 import scala.collection.{mutable, immutable, ArrayOps, StringOps}, immutable.WrappedString
diff --git a/library/src/scala/Product.scala b/library/src/scala/Product.scala
index 85c448eb6598..5d209b1962fe 100644
--- a/library/src/scala/Product.scala
+++ b/library/src/scala/Product.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Base trait for all products, which in the standard library include at
  *  least [[scala.Product1]] through [[scala.Product22]] and therefore also
diff --git a/library/src/scala/Product1.scala b/library/src/scala/Product1.scala
index 1ea5499515a5..d0e6066babfa 100644
--- a/library/src/scala/Product1.scala
+++ b/library/src/scala/Product1.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product1 {
   def unapply[T1](x: Product1[T1]): Option[Product1[T1]] =
diff --git a/library/src/scala/Product10.scala b/library/src/scala/Product10.scala
index 501354dbb550..ed2b7f748dab 100644
--- a/library/src/scala/Product10.scala
+++ b/library/src/scala/Product10.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product10 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10](x: Product10[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10]): Option[Product10[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10]] =
diff --git a/library/src/scala/Product11.scala b/library/src/scala/Product11.scala
index 4a73bd530a61..ba469e72998f 100644
--- a/library/src/scala/Product11.scala
+++ b/library/src/scala/Product11.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product11 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11](x: Product11[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11]): Option[Product11[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11]] =
diff --git a/library/src/scala/Product12.scala b/library/src/scala/Product12.scala
index e32c8e59bea9..ef75989d561b 100644
--- a/library/src/scala/Product12.scala
+++ b/library/src/scala/Product12.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product12 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12](x: Product12[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12]): Option[Product12[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12]] =
diff --git a/library/src/scala/Product13.scala b/library/src/scala/Product13.scala
index 53fe1e285219..86f0ad54b253 100644
--- a/library/src/scala/Product13.scala
+++ b/library/src/scala/Product13.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product13 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13](x: Product13[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13]): Option[Product13[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13]] =
diff --git a/library/src/scala/Product14.scala b/library/src/scala/Product14.scala
index 0cf2cd5af713..5f24459a775b 100644
--- a/library/src/scala/Product14.scala
+++ b/library/src/scala/Product14.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product14 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14](x: Product14[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14]): Option[Product14[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14]] =
diff --git a/library/src/scala/Product15.scala b/library/src/scala/Product15.scala
index e2c072b2f431..b02d7fdde0aa 100644
--- a/library/src/scala/Product15.scala
+++ b/library/src/scala/Product15.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product15 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15](x: Product15[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15]): Option[Product15[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15]] =
diff --git a/library/src/scala/Product16.scala b/library/src/scala/Product16.scala
index 39a11f02aab1..b07918060c03 100644
--- a/library/src/scala/Product16.scala
+++ b/library/src/scala/Product16.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product16 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16](x: Product16[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16]): Option[Product16[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16]] =
diff --git a/library/src/scala/Product17.scala b/library/src/scala/Product17.scala
index 3dc588beb3d7..969171c3c3fc 100644
--- a/library/src/scala/Product17.scala
+++ b/library/src/scala/Product17.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product17 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17](x: Product17[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17]): Option[Product17[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17]] =
diff --git a/library/src/scala/Product18.scala b/library/src/scala/Product18.scala
index 8f8b128b895a..cc6891dae9ee 100644
--- a/library/src/scala/Product18.scala
+++ b/library/src/scala/Product18.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product18 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18](x: Product18[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18]): Option[Product18[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18]] =
diff --git a/library/src/scala/Product19.scala b/library/src/scala/Product19.scala
index 53b0b556a501..44bdd2dd91d2 100644
--- a/library/src/scala/Product19.scala
+++ b/library/src/scala/Product19.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product19 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19](x: Product19[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19]): Option[Product19[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19]] =
diff --git a/library/src/scala/Product2.scala b/library/src/scala/Product2.scala
index 31b0be9a27a3..e7ab6be6e677 100644
--- a/library/src/scala/Product2.scala
+++ b/library/src/scala/Product2.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product2 {
   def unapply[T1, T2](x: Product2[T1, T2]): Option[Product2[T1, T2]] =
diff --git a/library/src/scala/Product20.scala b/library/src/scala/Product20.scala
index 54594f1b3bb9..148d936bde7e 100644
--- a/library/src/scala/Product20.scala
+++ b/library/src/scala/Product20.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product20 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20](x: Product20[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20]): Option[Product20[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20]] =
diff --git a/library/src/scala/Product21.scala b/library/src/scala/Product21.scala
index 91c0c3fa6938..3000c47f6f1e 100644
--- a/library/src/scala/Product21.scala
+++ b/library/src/scala/Product21.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product21 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21](x: Product21[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21]): Option[Product21[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21]] =
diff --git a/library/src/scala/Product22.scala b/library/src/scala/Product22.scala
index b603d2ba5440..a89de1d525fc 100644
--- a/library/src/scala/Product22.scala
+++ b/library/src/scala/Product22.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product22 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22](x: Product22[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22]): Option[Product22[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22]] =
diff --git a/library/src/scala/Product3.scala b/library/src/scala/Product3.scala
index 66a979542d56..96ef7f5cdab7 100644
--- a/library/src/scala/Product3.scala
+++ b/library/src/scala/Product3.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product3 {
   def unapply[T1, T2, T3](x: Product3[T1, T2, T3]): Option[Product3[T1, T2, T3]] =
diff --git a/library/src/scala/Product4.scala b/library/src/scala/Product4.scala
index cf07122b5ebb..7afb3e102a6c 100644
--- a/library/src/scala/Product4.scala
+++ b/library/src/scala/Product4.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product4 {
   def unapply[T1, T2, T3, T4](x: Product4[T1, T2, T3, T4]): Option[Product4[T1, T2, T3, T4]] =
diff --git a/library/src/scala/Product5.scala b/library/src/scala/Product5.scala
index 5d16eb779ec7..1758cd4e5e29 100644
--- a/library/src/scala/Product5.scala
+++ b/library/src/scala/Product5.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product5 {
   def unapply[T1, T2, T3, T4, T5](x: Product5[T1, T2, T3, T4, T5]): Option[Product5[T1, T2, T3, T4, T5]] =
diff --git a/library/src/scala/Product6.scala b/library/src/scala/Product6.scala
index 216740eb094c..d4d22928c83c 100644
--- a/library/src/scala/Product6.scala
+++ b/library/src/scala/Product6.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product6 {
   def unapply[T1, T2, T3, T4, T5, T6](x: Product6[T1, T2, T3, T4, T5, T6]): Option[Product6[T1, T2, T3, T4, T5, T6]] =
diff --git a/library/src/scala/Product7.scala b/library/src/scala/Product7.scala
index 03ed87b02600..a88e3b5a1a09 100644
--- a/library/src/scala/Product7.scala
+++ b/library/src/scala/Product7.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product7 {
   def unapply[T1, T2, T3, T4, T5, T6, T7](x: Product7[T1, T2, T3, T4, T5, T6, T7]): Option[Product7[T1, T2, T3, T4, T5, T6, T7]] =
diff --git a/library/src/scala/Product8.scala b/library/src/scala/Product8.scala
index 0c83e42413b8..4763ae36b8b8 100644
--- a/library/src/scala/Product8.scala
+++ b/library/src/scala/Product8.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product8 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8](x: Product8[T1, T2, T3, T4, T5, T6, T7, T8]): Option[Product8[T1, T2, T3, T4, T5, T6, T7, T8]] =
diff --git a/library/src/scala/Product9.scala b/library/src/scala/Product9.scala
index 73e3904756ce..06a24b57cf16 100644
--- a/library/src/scala/Product9.scala
+++ b/library/src/scala/Product9.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object Product9 {
   def unapply[T1, T2, T3, T4, T5, T6, T7, T8, T9](x: Product9[T1, T2, T3, T4, T5, T6, T7, T8, T9]): Option[Product9[T1, T2, T3, T4, T5, T6, T7, T8, T9]] =
diff --git a/library/src/scala/Proxy.scala b/library/src/scala/Proxy.scala
index 95bc28d65b37..d92f10b50c25 100644
--- a/library/src/scala/Proxy.scala
+++ b/library/src/scala/Proxy.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** This class implements a simple proxy that forwards all calls to
  *  the public, non-final methods defined in class `Any` to another
diff --git a/library/src/scala/SerialVersionUID.scala b/library/src/scala/SerialVersionUID.scala
index 83863b0f8ade..62becf8daf79 100644
--- a/library/src/scala/SerialVersionUID.scala
+++ b/library/src/scala/SerialVersionUID.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
   * Annotation for specifying the `serialVersionUID` field of a (serializable) class.
diff --git a/library/src/scala/Short.scala b/library/src/scala/Short.scala
index e238edf04786..fc58ad8640e7 100644
--- a/library/src/scala/Short.scala
+++ b/library/src/scala/Short.scala
@@ -16,7 +16,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** `Short`, a 16-bit signed integer (equivalent to Java's `short` primitive type) is a
  *  subtype of [[scala.AnyVal]]. Instances of `Short` are not
diff --git a/library/src/scala/Specializable.scala b/library/src/scala/Specializable.scala
index e080e56852bd..51822f9f6446 100644
--- a/library/src/scala/Specializable.scala
+++ b/library/src/scala/Specializable.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A common supertype for companions of specializable types.
  *  Should not be extended in user code.
diff --git a/library/src/scala/StringContext.scala b/library/src/scala/StringContext.scala
index 9a245094de32..ab07a50d6e01 100644
--- a/library/src/scala/StringContext.scala
+++ b/library/src/scala/StringContext.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.lang.{ StringBuilder => JLSBuilder }
 import scala.annotation.tailrec
 import scala.collection.mutable.ArrayBuilder
diff --git a/library/src/scala/Symbol.scala b/library/src/scala/Symbol.scala
index 29a95a4e3440..f865f2ce4262 100644
--- a/library/src/scala/Symbol.scala
+++ b/library/src/scala/Symbol.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** This class provides a simple way to get unique objects for equal strings.
  *  Since symbols are interned, they can be compared using reference equality.
diff --git a/library/src/scala/Tuple1.scala b/library/src/scala/Tuple1.scala
index dfc700dde763..b172fc372d62 100644
--- a/library/src/scala/Tuple1.scala
+++ b/library/src/scala/Tuple1.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 1 elements; the canonical representation of a [[scala.Product1]].
  *
diff --git a/library/src/scala/Tuple10.scala b/library/src/scala/Tuple10.scala
index cf6b6137f886..38a8aed871c5 100644
--- a/library/src/scala/Tuple10.scala
+++ b/library/src/scala/Tuple10.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 10 elements; the canonical representation of a [[scala.Product10]].
  *
diff --git a/library/src/scala/Tuple11.scala b/library/src/scala/Tuple11.scala
index 3af8245a9499..516dc8a0d8b4 100644
--- a/library/src/scala/Tuple11.scala
+++ b/library/src/scala/Tuple11.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 11 elements; the canonical representation of a [[scala.Product11]].
  *
diff --git a/library/src/scala/Tuple12.scala b/library/src/scala/Tuple12.scala
index e910f13fac9b..f3a0d3ff1192 100644
--- a/library/src/scala/Tuple12.scala
+++ b/library/src/scala/Tuple12.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 12 elements; the canonical representation of a [[scala.Product12]].
  *
diff --git a/library/src/scala/Tuple13.scala b/library/src/scala/Tuple13.scala
index 16c532ea714e..29b016d8fe0f 100644
--- a/library/src/scala/Tuple13.scala
+++ b/library/src/scala/Tuple13.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 13 elements; the canonical representation of a [[scala.Product13]].
  *
diff --git a/library/src/scala/Tuple14.scala b/library/src/scala/Tuple14.scala
index 7c58dd7f39d5..1cc257ba384d 100644
--- a/library/src/scala/Tuple14.scala
+++ b/library/src/scala/Tuple14.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 14 elements; the canonical representation of a [[scala.Product14]].
  *
diff --git a/library/src/scala/Tuple15.scala b/library/src/scala/Tuple15.scala
index 948259ce17d1..e7dcd5cedb81 100644
--- a/library/src/scala/Tuple15.scala
+++ b/library/src/scala/Tuple15.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 15 elements; the canonical representation of a [[scala.Product15]].
  *
diff --git a/library/src/scala/Tuple16.scala b/library/src/scala/Tuple16.scala
index d10c3231bbc5..f585f8e8a54c 100644
--- a/library/src/scala/Tuple16.scala
+++ b/library/src/scala/Tuple16.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 16 elements; the canonical representation of a [[scala.Product16]].
  *
diff --git a/library/src/scala/Tuple17.scala b/library/src/scala/Tuple17.scala
index d41ff3292f93..d2fbbc2bc961 100644
--- a/library/src/scala/Tuple17.scala
+++ b/library/src/scala/Tuple17.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 17 elements; the canonical representation of a [[scala.Product17]].
  *
diff --git a/library/src/scala/Tuple18.scala b/library/src/scala/Tuple18.scala
index 5cc5a43c5a12..8928c483d09e 100644
--- a/library/src/scala/Tuple18.scala
+++ b/library/src/scala/Tuple18.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 18 elements; the canonical representation of a [[scala.Product18]].
  *
diff --git a/library/src/scala/Tuple19.scala b/library/src/scala/Tuple19.scala
index 2838598519e3..a95ab333d64c 100644
--- a/library/src/scala/Tuple19.scala
+++ b/library/src/scala/Tuple19.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 19 elements; the canonical representation of a [[scala.Product19]].
  *
diff --git a/library/src/scala/Tuple2.scala b/library/src/scala/Tuple2.scala
index 5be82df849e4..7f7b1d8d0866 100644
--- a/library/src/scala/Tuple2.scala
+++ b/library/src/scala/Tuple2.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 2 elements; the canonical representation of a [[scala.Product2]].
  *
diff --git a/library/src/scala/Tuple20.scala b/library/src/scala/Tuple20.scala
index e7250fc91f43..79217269fae7 100644
--- a/library/src/scala/Tuple20.scala
+++ b/library/src/scala/Tuple20.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 20 elements; the canonical representation of a [[scala.Product20]].
  *
diff --git a/library/src/scala/Tuple21.scala b/library/src/scala/Tuple21.scala
index fd4eb7a5b8dd..951bccf2bc97 100644
--- a/library/src/scala/Tuple21.scala
+++ b/library/src/scala/Tuple21.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 21 elements; the canonical representation of a [[scala.Product21]].
  *
diff --git a/library/src/scala/Tuple22.scala b/library/src/scala/Tuple22.scala
index a417bc9cf0c3..f0f3533cd4bd 100644
--- a/library/src/scala/Tuple22.scala
+++ b/library/src/scala/Tuple22.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 22 elements; the canonical representation of a [[scala.Product22]].
  *
diff --git a/library/src/scala/Tuple3.scala b/library/src/scala/Tuple3.scala
index fcb0cdb7989b..c63abe5786a0 100644
--- a/library/src/scala/Tuple3.scala
+++ b/library/src/scala/Tuple3.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 3 elements; the canonical representation of a [[scala.Product3]].
  *
diff --git a/library/src/scala/Tuple4.scala b/library/src/scala/Tuple4.scala
index a36d1b14519b..e48cb2043d4c 100644
--- a/library/src/scala/Tuple4.scala
+++ b/library/src/scala/Tuple4.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 4 elements; the canonical representation of a [[scala.Product4]].
  *
diff --git a/library/src/scala/Tuple5.scala b/library/src/scala/Tuple5.scala
index da3315535eda..c4a4fc6cf415 100644
--- a/library/src/scala/Tuple5.scala
+++ b/library/src/scala/Tuple5.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 5 elements; the canonical representation of a [[scala.Product5]].
  *
diff --git a/library/src/scala/Tuple6.scala b/library/src/scala/Tuple6.scala
index 19e34ff9937e..1e28feb1661b 100644
--- a/library/src/scala/Tuple6.scala
+++ b/library/src/scala/Tuple6.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 6 elements; the canonical representation of a [[scala.Product6]].
  *
diff --git a/library/src/scala/Tuple7.scala b/library/src/scala/Tuple7.scala
index 398faa435d62..64e261eb7f32 100644
--- a/library/src/scala/Tuple7.scala
+++ b/library/src/scala/Tuple7.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 7 elements; the canonical representation of a [[scala.Product7]].
  *
diff --git a/library/src/scala/Tuple8.scala b/library/src/scala/Tuple8.scala
index 0c3e569de884..5c5adfd5a5b4 100644
--- a/library/src/scala/Tuple8.scala
+++ b/library/src/scala/Tuple8.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 8 elements; the canonical representation of a [[scala.Product8]].
  *
diff --git a/library/src/scala/Tuple9.scala b/library/src/scala/Tuple9.scala
index b52971dd7a78..3a69c9ae8b25 100644
--- a/library/src/scala/Tuple9.scala
+++ b/library/src/scala/Tuple9.scala
@@ -14,7 +14,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A tuple of 9 elements; the canonical representation of a [[scala.Product9]].
  *
diff --git a/library/src/scala/UninitializedError.scala b/library/src/scala/UninitializedError.scala
index 247c83124d04..e53c2698ef68 100644
--- a/library/src/scala/UninitializedError.scala
+++ b/library/src/scala/UninitializedError.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** This class represents uninitialized variable/value errors.
  */
diff --git a/library/src/scala/UninitializedFieldError.scala b/library/src/scala/UninitializedFieldError.scala
index c225dca83311..77476a69b8af 100644
--- a/library/src/scala/UninitializedFieldError.scala
+++ b/library/src/scala/UninitializedFieldError.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** This class implements errors which are thrown whenever a
  *  field is used before it has been initialized.
diff --git a/library/src/scala/Unit.scala b/library/src/scala/Unit.scala
index c3236fd7522d..1799f678e3fa 100644
--- a/library/src/scala/Unit.scala
+++ b/library/src/scala/Unit.scala
@@ -16,7 +16,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** `Unit` is a subtype of [[scala.AnyVal]]. There is only one value of type
  *  `Unit`, `()`, and it is not represented by any object in the underlying
diff --git a/library/src/scala/ValueOf.scala b/library/src/scala/ValueOf.scala
index bfc5a0d98f84..eea40ca5e0c3 100644
--- a/library/src/scala/ValueOf.scala
+++ b/library/src/scala/ValueOf.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * `ValueOf[T]` provides the unique value of the type `T` where `T` is a type which has a
diff --git a/library/src/scala/annotation/Annotation.scala b/library/src/scala/annotation/Annotation.scala
index 1b9ae71fd6b9..8997071d9321 100644
--- a/library/src/scala/annotation/Annotation.scala
+++ b/library/src/scala/annotation/Annotation.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * A base class for annotations.
diff --git a/library/src/scala/annotation/ClassfileAnnotation.scala b/library/src/scala/annotation/ClassfileAnnotation.scala
index 93a175272a3d..c9e9cd63614a 100644
--- a/library/src/scala/annotation/ClassfileAnnotation.scala
+++ b/library/src/scala/annotation/ClassfileAnnotation.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A base class for classfile annotations. These are stored as
  *  [[https://docs.oracle.com/javase/8/docs/technotes/guides/language/annotations.html Java annotations]]
diff --git a/library/src/scala/annotation/ConstantAnnotation.scala b/library/src/scala/annotation/ConstantAnnotation.scala
index 39110fbe166d..248d18545842 100644
--- a/library/src/scala/annotation/ConstantAnnotation.scala
+++ b/library/src/scala/annotation/ConstantAnnotation.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * Annotation classes extending this trait only accept constant values as arguments.
diff --git a/library/src/scala/annotation/StaticAnnotation.scala b/library/src/scala/annotation/StaticAnnotation.scala
index 3f3513c05ff9..0d0e2159731e 100644
--- a/library/src/scala/annotation/StaticAnnotation.scala
+++ b/library/src/scala/annotation/StaticAnnotation.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * A base class for static annotations. These are available to the Scala type checker or Scala
diff --git a/library/src/scala/annotation/TypeConstraint.scala b/library/src/scala/annotation/TypeConstraint.scala
index 121710b137bf..4cfd24a1bc9a 100644
--- a/library/src/scala/annotation/TypeConstraint.scala
+++ b/library/src/scala/annotation/TypeConstraint.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A marker for annotations that, when applied to a type, should be treated
  *  as a constraint on the annotated type.
diff --git a/library/src/scala/annotation/compileTimeOnly.scala b/library/src/scala/annotation/compileTimeOnly.scala
index 8981ad7d0eda..731e03a0bbc6 100644
--- a/library/src/scala/annotation/compileTimeOnly.scala
+++ b/library/src/scala/annotation/compileTimeOnly.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.meta._
 
 /**
diff --git a/library/src/scala/annotation/elidable.scala b/library/src/scala/annotation/elidable.scala
index cdbd9b5d592c..db2aa024a071 100644
--- a/library/src/scala/annotation/elidable.scala
+++ b/library/src/scala/annotation/elidable.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** An annotation for methods whose bodies may be excluded
  *  from compiler-generated bytecode.
diff --git a/library/src/scala/annotation/implicitAmbiguous.scala b/library/src/scala/annotation/implicitAmbiguous.scala
index c734daf76e4b..1d33d329272d 100644
--- a/library/src/scala/annotation/implicitAmbiguous.scala
+++ b/library/src/scala/annotation/implicitAmbiguous.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
   * To customize the error message that's emitted when an implicit search finds
diff --git a/library/src/scala/annotation/implicitNotFound.scala b/library/src/scala/annotation/implicitNotFound.scala
index 70080aafabf4..cc12beb7d701 100644
--- a/library/src/scala/annotation/implicitNotFound.scala
+++ b/library/src/scala/annotation/implicitNotFound.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * To customize the error message that's emitted when an implicit of type
diff --git a/library/src/scala/annotation/meta/beanGetter.scala b/library/src/scala/annotation/meta/beanGetter.scala
index 887019a564e1..fcd12d2f679f 100644
--- a/library/src/scala/annotation/meta/beanGetter.scala
+++ b/library/src/scala/annotation/meta/beanGetter.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation.meta
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * Consult the documentation in package [[scala.annotation.meta]].
diff --git a/library/src/scala/annotation/meta/beanSetter.scala b/library/src/scala/annotation/meta/beanSetter.scala
index 003efeb5cd45..3951ccf0da90 100644
--- a/library/src/scala/annotation/meta/beanSetter.scala
+++ b/library/src/scala/annotation/meta/beanSetter.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation.meta
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * Consult the documentation in package [[scala.annotation.meta]].
diff --git a/library/src/scala/annotation/meta/companionClass.scala b/library/src/scala/annotation/meta/companionClass.scala
index aa5f03752ae5..a1417e3808d9 100644
--- a/library/src/scala/annotation/meta/companionClass.scala
+++ b/library/src/scala/annotation/meta/companionClass.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation.meta
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * When defining an implicit class, the Scala compiler creates an implicit
diff --git a/library/src/scala/annotation/meta/companionMethod.scala b/library/src/scala/annotation/meta/companionMethod.scala
index ba815cbebe65..746c8bc73b60 100644
--- a/library/src/scala/annotation/meta/companionMethod.scala
+++ b/library/src/scala/annotation/meta/companionMethod.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation.meta
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * When defining an implicit class, the Scala compiler creates an implicit
diff --git a/library/src/scala/annotation/meta/companionObject.scala b/library/src/scala/annotation/meta/companionObject.scala
index c92e827d817d..91bc7c300ac1 100644
--- a/library/src/scala/annotation/meta/companionObject.scala
+++ b/library/src/scala/annotation/meta/companionObject.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation.meta
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * Currently unused; intended as an annotation target for classes such as case classes
diff --git a/library/src/scala/annotation/meta/defaultArg.scala b/library/src/scala/annotation/meta/defaultArg.scala
index e4cdab835e05..2cbc3aa2af67 100644
--- a/library/src/scala/annotation/meta/defaultArg.scala
+++ b/library/src/scala/annotation/meta/defaultArg.scala
@@ -13,7 +13,7 @@
 package scala.annotation
 package meta
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * This internal meta annotation is used by the compiler to support default annotation arguments.
diff --git a/library/src/scala/annotation/meta/field.scala b/library/src/scala/annotation/meta/field.scala
index eeee4975e477..43c70f93e255 100644
--- a/library/src/scala/annotation/meta/field.scala
+++ b/library/src/scala/annotation/meta/field.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation.meta
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * Consult the documentation in package [[scala.annotation.meta]].
diff --git a/library/src/scala/annotation/meta/getter.scala b/library/src/scala/annotation/meta/getter.scala
index d016798c8f12..1d7e0f5db5b5 100644
--- a/library/src/scala/annotation/meta/getter.scala
+++ b/library/src/scala/annotation/meta/getter.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation.meta
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * Consult the documentation in package [[scala.annotation.meta]].
diff --git a/library/src/scala/annotation/meta/languageFeature.scala b/library/src/scala/annotation/meta/languageFeature.scala
index 620f297cfba6..83a96c65b940 100644
--- a/library/src/scala/annotation/meta/languageFeature.scala
+++ b/library/src/scala/annotation/meta/languageFeature.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation.meta
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * An annotation giving particulars for a language feature in object `scala.language`.
diff --git a/library/src/scala/annotation/meta/package.scala b/library/src/scala/annotation/meta/package.scala
index 805b6750f10f..ddb21d208d53 100644
--- a/library/src/scala/annotation/meta/package.scala
+++ b/library/src/scala/annotation/meta/package.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * When defining a field, the Scala compiler creates up to four accessors
diff --git a/library/src/scala/annotation/meta/param.scala b/library/src/scala/annotation/meta/param.scala
index 5a755b454d71..725d89ade8f5 100644
--- a/library/src/scala/annotation/meta/param.scala
+++ b/library/src/scala/annotation/meta/param.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation.meta
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * Consult the documentation in package [[scala.annotation.meta]].
diff --git a/library/src/scala/annotation/meta/setter.scala b/library/src/scala/annotation/meta/setter.scala
index e8ff9ae03f01..5db7cae2da72 100644
--- a/library/src/scala/annotation/meta/setter.scala
+++ b/library/src/scala/annotation/meta/setter.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation.meta
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * Consult the documentation in package [[scala.annotation.meta]].
diff --git a/library/src/scala/annotation/meta/superArg.scala b/library/src/scala/annotation/meta/superArg.scala
index 39465b723937..6dd22135990a 100644
--- a/library/src/scala/annotation/meta/superArg.scala
+++ b/library/src/scala/annotation/meta/superArg.scala
@@ -13,7 +13,7 @@
 package scala.annotation
 package meta
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * This internal annotation encodes arguments passed to annotation superclasses. Example:
diff --git a/library/src/scala/annotation/migration.scala b/library/src/scala/annotation/migration.scala
index 5980e5b623c7..8daa003eba96 100644
--- a/library/src/scala/annotation/migration.scala
+++ b/library/src/scala/annotation/migration.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * An annotation that marks a member as having changed semantics
diff --git a/library/src/scala/annotation/nowarn.scala b/library/src/scala/annotation/nowarn.scala
index 54ae27251a68..af1cebb42b0a 100644
--- a/library/src/scala/annotation/nowarn.scala
+++ b/library/src/scala/annotation/nowarn.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** An annotation for local warning suppression.
   *
diff --git a/library/src/scala/annotation/showAsInfix.scala b/library/src/scala/annotation/showAsInfix.scala
index 8344f1266b59..89cbd623e76c 100644
--- a/library/src/scala/annotation/showAsInfix.scala
+++ b/library/src/scala/annotation/showAsInfix.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * This annotation configures how Scala prints two-parameter generic types.
diff --git a/library/src/scala/annotation/strictfp.scala b/library/src/scala/annotation/strictfp.scala
index e745c7af9842..fd558390abfb 100644
--- a/library/src/scala/annotation/strictfp.scala
+++ b/library/src/scala/annotation/strictfp.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** If this annotation is present on a method or its enclosing class,
  *  the strictfp flag will be emitted.
diff --git a/library/src/scala/annotation/switch.scala b/library/src/scala/annotation/switch.scala
index 8c940959c4ba..590c07bc94ba 100644
--- a/library/src/scala/annotation/switch.scala
+++ b/library/src/scala/annotation/switch.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** An annotation to be applied to a match expression.  If present,
  *  the compiler will verify that the match has been compiled to a
diff --git a/library/src/scala/annotation/tailrec.scala b/library/src/scala/annotation/tailrec.scala
index 6a1bd92bcb6b..7d5fa19ef043 100644
--- a/library/src/scala/annotation/tailrec.scala
+++ b/library/src/scala/annotation/tailrec.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A method annotation which verifies that the method will be compiled
  *  with tail call optimization.
diff --git a/library/src/scala/annotation/unchecked/uncheckedStable.scala b/library/src/scala/annotation/unchecked/uncheckedStable.scala
index 2bf9d779cd1f..585c5a13ef37 100644
--- a/library/src/scala/annotation/unchecked/uncheckedStable.scala
+++ b/library/src/scala/annotation/unchecked/uncheckedStable.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation.unchecked
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.meta.{field, getter}
 
 /** An annotation for values that are assumed to be stable even though their
diff --git a/library/src/scala/annotation/unchecked/uncheckedVariance.scala b/library/src/scala/annotation/unchecked/uncheckedVariance.scala
index c2624792c917..fb426dbf877c 100644
--- a/library/src/scala/annotation/unchecked/uncheckedVariance.scala
+++ b/library/src/scala/annotation/unchecked/uncheckedVariance.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation.unchecked
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** An annotation for type arguments for which one wants to suppress variance checking.
  */
diff --git a/library/src/scala/annotation/unspecialized.scala b/library/src/scala/annotation/unspecialized.scala
index 3b960858bc31..616542305fbc 100644
--- a/library/src/scala/annotation/unspecialized.scala
+++ b/library/src/scala/annotation/unspecialized.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A method annotation which suppresses the creation of
  *  additional specialized forms based on enclosing specialized
diff --git a/library/src/scala/annotation/unused.scala b/library/src/scala/annotation/unused.scala
index d9937e0479ea..b2fdd2034fef 100644
--- a/library/src/scala/annotation/unused.scala
+++ b/library/src/scala/annotation/unused.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Mark an element unused for a given context.
  *
diff --git a/library/src/scala/annotation/varargs.scala b/library/src/scala/annotation/varargs.scala
index 1d08e2468433..967e2df00f6f 100644
--- a/library/src/scala/annotation/varargs.scala
+++ b/library/src/scala/annotation/varargs.scala
@@ -12,7 +12,7 @@
 
 package scala.annotation
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A method annotation which instructs the compiler to generate a
  *  Java varargs-style forwarder method for interop. This annotation can
diff --git a/library/src/scala/beans/BeanProperty.scala b/library/src/scala/beans/BeanProperty.scala
index 42e1a30c2a25..37c6ecf3676b 100644
--- a/library/src/scala/beans/BeanProperty.scala
+++ b/library/src/scala/beans/BeanProperty.scala
@@ -12,7 +12,7 @@
 
 package scala.beans
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 import scala.annotation.meta.{beanGetter, beanSetter, field}
 
diff --git a/library/src/scala/beans/BooleanBeanProperty.scala b/library/src/scala/beans/BooleanBeanProperty.scala
index cd9f0288913d..657b17d564bb 100644
--- a/library/src/scala/beans/BooleanBeanProperty.scala
+++ b/library/src/scala/beans/BooleanBeanProperty.scala
@@ -12,7 +12,7 @@
 
 package scala.beans
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.meta.{beanGetter, beanSetter, field}
 
 /** This annotation has the same functionality as
diff --git a/library/src/scala/collection/ArrayOps.scala b/library/src/scala/collection/ArrayOps.scala
index 36025b0a0ade..c7f5ff67bd73 100644
--- a/library/src/scala/collection/ArrayOps.scala
+++ b/library/src/scala/collection/ArrayOps.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.lang.Math.{max, min}
 import java.util.Arrays
 
diff --git a/library/src/scala/collection/BitSet.scala b/library/src/scala/collection/BitSet.scala
index fa23bbc5a19a..e82950b82e80 100644
--- a/library/src/scala/collection/BitSet.scala
+++ b/library/src/scala/collection/BitSet.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.io.{ObjectInputStream, ObjectOutputStream}
 
 import scala.annotation.nowarn
diff --git a/library/src/scala/collection/BufferedIterator.scala b/library/src/scala/collection/BufferedIterator.scala
index d56f2909989e..e933ffcd4c16 100644
--- a/library/src/scala/collection/BufferedIterator.scala
+++ b/library/src/scala/collection/BufferedIterator.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Buffered iterators are iterators which provide a method `head`
  *  that inspects the next element without discarding it.
diff --git a/library/src/scala/collection/BuildFrom.scala b/library/src/scala/collection/BuildFrom.scala
index 2e93fac6b782..1a623228db55 100644
--- a/library/src/scala/collection/BuildFrom.scala
+++ b/library/src/scala/collection/BuildFrom.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.implicitNotFound
 import scala.collection.mutable.Builder
 import scala.collection.immutable.WrappedString
diff --git a/library/src/scala/collection/DefaultMap.scala b/library/src/scala/collection/DefaultMap.scala
index 27138060165c..d957a4ef245e 100644
--- a/library/src/scala/collection/DefaultMap.scala
+++ b/library/src/scala/collection/DefaultMap.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A default map which builds a default `immutable.Map` implementation for all
   * transformations.
diff --git a/library/src/scala/collection/Factory.scala b/library/src/scala/collection/Factory.scala
index ba6b120b90fb..8e40f2955853 100644
--- a/library/src/scala/collection/Factory.scala
+++ b/library/src/scala/collection/Factory.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.immutable.NumericRange
 import scala.language.implicitConversions
 import scala.collection.mutable.Builder
diff --git a/library/src/scala/collection/Hashing.scala b/library/src/scala/collection/Hashing.scala
index cd82b4574b85..5ba8ad24948f 100644
--- a/library/src/scala/collection/Hashing.scala
+++ b/library/src/scala/collection/Hashing.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 protected[collection] object Hashing {
 
diff --git a/library/src/scala/collection/IndexedSeq.scala b/library/src/scala/collection/IndexedSeq.scala
index 9dbbd5e2ed4d..4ad5515a8536 100644
--- a/library/src/scala/collection/IndexedSeq.scala
+++ b/library/src/scala/collection/IndexedSeq.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.{nowarn, tailrec}
 import scala.collection.Searching.{Found, InsertionPoint, SearchResult}
 import scala.collection.Stepper.EfficientSplit
diff --git a/library/src/scala/collection/IndexedSeqView.scala b/library/src/scala/collection/IndexedSeqView.scala
index 491c58cb1129..d03ff1b1c689 100644
--- a/library/src/scala/collection/IndexedSeqView.scala
+++ b/library/src/scala/collection/IndexedSeqView.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.nowarn
 
 
diff --git a/library/src/scala/collection/Iterable.scala b/library/src/scala/collection/Iterable.scala
index 32052a72192a..665418af113b 100644
--- a/library/src/scala/collection/Iterable.scala
+++ b/library/src/scala/collection/Iterable.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.nowarn
 import scala.annotation.unchecked.uncheckedVariance
 import scala.collection.mutable.Builder
diff --git a/library/src/scala/collection/IterableOnce.scala b/library/src/scala/collection/IterableOnce.scala
index dc37b97f56e1..cfdda3ce893a 100644
--- a/library/src/scala/collection/IterableOnce.scala
+++ b/library/src/scala/collection/IterableOnce.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.tailrec
 import scala.annotation.unchecked.uncheckedVariance
 import scala.collection.mutable.StringBuilder
diff --git a/library/src/scala/collection/Iterator.scala b/library/src/scala/collection/Iterator.scala
index 4fe61a3bc1cc..4fb1cc6d362b 100644
--- a/library/src/scala/collection/Iterator.scala
+++ b/library/src/scala/collection/Iterator.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.mutable.{ArrayBuffer, ArrayBuilder, Builder, ImmutableBuilder}
 import scala.annotation.tailrec
 import scala.annotation.unchecked.uncheckedVariance
diff --git a/library/src/scala/collection/JavaConverters.scala b/library/src/scala/collection/JavaConverters.scala
index d3047b0c000c..b49e472c04b2 100644
--- a/library/src/scala/collection/JavaConverters.scala
+++ b/library/src/scala/collection/JavaConverters.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.{concurrent => juc}
 import java.{lang => jl, util => ju}
 
diff --git a/library/src/scala/collection/LazyZipOps.scala b/library/src/scala/collection/LazyZipOps.scala
index 2103ea8c6394..dba5b6432def 100644
--- a/library/src/scala/collection/LazyZipOps.scala
+++ b/library/src/scala/collection/LazyZipOps.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.language.implicitConversions
 
 /** Decorator representing lazily zipped pairs.
diff --git a/library/src/scala/collection/LinearSeq.scala b/library/src/scala/collection/LinearSeq.scala
index c7b17beb8fdf..fb6991717c69 100644
--- a/library/src/scala/collection/LinearSeq.scala
+++ b/library/src/scala/collection/LinearSeq.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.{nowarn, tailrec}
 
 /** Base trait for linearly accessed sequences that have efficient `head` and
diff --git a/library/src/scala/collection/Map.scala b/library/src/scala/collection/Map.scala
index 3836181eb342..c3d0f04ef8f9 100644
--- a/library/src/scala/collection/Map.scala
+++ b/library/src/scala/collection/Map.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.nowarn
 import scala.collection.generic.DefaultSerializable
 import scala.collection.mutable.StringBuilder
diff --git a/library/src/scala/collection/MapView.scala b/library/src/scala/collection/MapView.scala
index 3dfb87fb5c42..a058f3f79514 100644
--- a/library/src/scala/collection/MapView.scala
+++ b/library/src/scala/collection/MapView.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.nowarn
 import scala.collection.MapView.SomeMapOps
 import scala.collection.mutable.Builder
diff --git a/library/src/scala/collection/Searching.scala b/library/src/scala/collection/Searching.scala
index 8d5f823e2bfc..7148f54606bf 100644
--- a/library/src/scala/collection/Searching.scala
+++ b/library/src/scala/collection/Searching.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.language.implicitConversions
 import scala.collection.generic.IsSeq
 
diff --git a/library/src/scala/collection/Seq.scala b/library/src/scala/collection/Seq.scala
index 9d3d6d3430a5..ee52b1f22243 100644
--- a/library/src/scala/collection/Seq.scala
+++ b/library/src/scala/collection/Seq.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.immutable.Range
 import scala.util.hashing.MurmurHash3
 import Searching.{Found, InsertionPoint, SearchResult}
diff --git a/library/src/scala/collection/SeqMap.scala b/library/src/scala/collection/SeqMap.scala
index fe8f321ad78e..17d187975af2 100644
--- a/library/src/scala/collection/SeqMap.scala
+++ b/library/src/scala/collection/SeqMap.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.nowarn
 
 /**
diff --git a/library/src/scala/collection/SeqView.scala b/library/src/scala/collection/SeqView.scala
index 5181f62fbb5e..3f6a4c5c3ea4 100644
--- a/library/src/scala/collection/SeqView.scala
+++ b/library/src/scala/collection/SeqView.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.nowarn
 import scala.collection.generic.CommonErrors
 
diff --git a/library/src/scala/collection/Set.scala b/library/src/scala/collection/Set.scala
index 0ae870c658ce..2ec1c0dfcee3 100644
--- a/library/src/scala/collection/Set.scala
+++ b/library/src/scala/collection/Set.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.util.hashing.MurmurHash3
 import java.lang.String
 
diff --git a/library/src/scala/collection/SortedMap.scala b/library/src/scala/collection/SortedMap.scala
index 7a1c92391e8a..6b74afe919fa 100644
--- a/library/src/scala/collection/SortedMap.scala
+++ b/library/src/scala/collection/SortedMap.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.{implicitNotFound, nowarn}
 
 /** A Map whose keys are sorted according to a [[scala.math.Ordering]]*/
diff --git a/library/src/scala/collection/SortedOps.scala b/library/src/scala/collection/SortedOps.scala
index 0fc0bb06692e..ace9a7ed76db 100644
--- a/library/src/scala/collection/SortedOps.scala
+++ b/library/src/scala/collection/SortedOps.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Base trait for sorted collections */
 trait SortedOps[A, +C] {
diff --git a/library/src/scala/collection/SortedSet.scala b/library/src/scala/collection/SortedSet.scala
index deaab1159d9a..38f0713a0f15 100644
--- a/library/src/scala/collection/SortedSet.scala
+++ b/library/src/scala/collection/SortedSet.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.{implicitNotFound, nowarn}
 import scala.annotation.unchecked.uncheckedVariance
 
diff --git a/library/src/scala/collection/Stepper.scala b/library/src/scala/collection/Stepper.scala
index 9a035b5a7115..8755142d7209 100644
--- a/library/src/scala/collection/Stepper.scala
+++ b/library/src/scala/collection/Stepper.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.function.{Consumer, DoubleConsumer, IntConsumer, LongConsumer}
 import java.util.{PrimitiveIterator, Spliterator, Iterator => JIterator}
 import java.{lang => jl}
diff --git a/library/src/scala/collection/StepperShape.scala b/library/src/scala/collection/StepperShape.scala
index 9215ce9ea215..ec193cc27fc2 100644
--- a/library/src/scala/collection/StepperShape.scala
+++ b/library/src/scala/collection/StepperShape.scala
@@ -14,7 +14,7 @@ package scala.collection
 
 import java.{lang => jl}
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.Stepper.EfficientSplit
 
 /** An implicit StepperShape instance is used in the [[IterableOnce.stepper]] to return a possibly
diff --git a/library/src/scala/collection/StrictOptimizedIterableOps.scala b/library/src/scala/collection/StrictOptimizedIterableOps.scala
index 4c22b95fd768..7d1ad357f3d9 100644
--- a/library/src/scala/collection/StrictOptimizedIterableOps.scala
+++ b/library/src/scala/collection/StrictOptimizedIterableOps.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.nowarn
 import scala.annotation.unchecked.uncheckedVariance
 import scala.runtime.Statics
diff --git a/library/src/scala/collection/StrictOptimizedMapOps.scala b/library/src/scala/collection/StrictOptimizedMapOps.scala
index 2f29d99ad458..8bf04c5dee6b 100644
--- a/library/src/scala/collection/StrictOptimizedMapOps.scala
+++ b/library/src/scala/collection/StrictOptimizedMapOps.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
   * Trait that overrides map operations to take advantage of strict builders.
diff --git a/library/src/scala/collection/StrictOptimizedSeqOps.scala b/library/src/scala/collection/StrictOptimizedSeqOps.scala
index 7185b29d1d04..ed4b76298322 100644
--- a/library/src/scala/collection/StrictOptimizedSeqOps.scala
+++ b/library/src/scala/collection/StrictOptimizedSeqOps.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
   * Trait that overrides operations on sequences in order
diff --git a/library/src/scala/collection/StrictOptimizedSetOps.scala b/library/src/scala/collection/StrictOptimizedSetOps.scala
index 28033e38741c..0100beffed7b 100644
--- a/library/src/scala/collection/StrictOptimizedSetOps.scala
+++ b/library/src/scala/collection/StrictOptimizedSetOps.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
   * Trait that overrides set operations to take advantage of strict builders.
diff --git a/library/src/scala/collection/StrictOptimizedSortedMapOps.scala b/library/src/scala/collection/StrictOptimizedSortedMapOps.scala
index 6b5e23a7c9d1..bdc1fe3dbab5 100644
--- a/library/src/scala/collection/StrictOptimizedSortedMapOps.scala
+++ b/library/src/scala/collection/StrictOptimizedSortedMapOps.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.implicitNotFound
 
 /**
diff --git a/library/src/scala/collection/StrictOptimizedSortedSetOps.scala b/library/src/scala/collection/StrictOptimizedSortedSetOps.scala
index 7c8d6737f67f..1c1d861c67d1 100644
--- a/library/src/scala/collection/StrictOptimizedSortedSetOps.scala
+++ b/library/src/scala/collection/StrictOptimizedSortedSetOps.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.implicitNotFound
 import scala.annotation.unchecked.uncheckedVariance
 
diff --git a/library/src/scala/collection/StringOps.scala b/library/src/scala/collection/StringOps.scala
index 65737197e4c5..20f51e35da20 100644
--- a/library/src/scala/collection/StringOps.scala
+++ b/library/src/scala/collection/StringOps.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.lang.{StringBuilder => JStringBuilder}
 
 import scala.collection.Stepper.EfficientSplit
diff --git a/library/src/scala/collection/StringParsers.scala b/library/src/scala/collection/StringParsers.scala
index b857f060fd0a..cfaa4f86985f 100644
--- a/library/src/scala/collection/StringParsers.scala
+++ b/library/src/scala/collection/StringParsers.scala
@@ -13,7 +13,7 @@
 package scala
 package collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.tailrec
 
 /** A module containing the implementations of parsers from strings to numeric types, and boolean
diff --git a/library/src/scala/collection/View.scala b/library/src/scala/collection/View.scala
index 4d5622f7210b..690ba49aafe8 100644
--- a/library/src/scala/collection/View.scala
+++ b/library/src/scala/collection/View.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.{nowarn, tailrec}
 import scala.collection.mutable.{ArrayBuffer, Builder}
 import scala.collection.immutable.LazyList
diff --git a/library/src/scala/collection/WithFilter.scala b/library/src/scala/collection/WithFilter.scala
index 978e302fecc7..da65ba6fab27 100644
--- a/library/src/scala/collection/WithFilter.scala
+++ b/library/src/scala/collection/WithFilter.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A template trait that contains just the `map`, `flatMap`, `foreach` and `withFilter` methods
   * of trait `Iterable`.
diff --git a/library/src/scala/collection/concurrent/Map.scala b/library/src/scala/collection/concurrent/Map.scala
index 6f5347124d5e..818fcda2a510 100644
--- a/library/src/scala/collection/concurrent/Map.scala
+++ b/library/src/scala/collection/concurrent/Map.scala
@@ -13,7 +13,7 @@
 package scala
 package collection.concurrent
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.tailrec
 
 /** A template trait for mutable maps that allow concurrent access.
diff --git a/library/src/scala/collection/concurrent/TrieMap.scala b/library/src/scala/collection/concurrent/TrieMap.scala
index 2e92d12c2ecd..4e3916c6981c 100644
--- a/library/src/scala/collection/concurrent/TrieMap.scala
+++ b/library/src/scala/collection/concurrent/TrieMap.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package concurrent
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.concurrent.atomic._
 import scala.{unchecked => uc}
 import scala.annotation.tailrec
diff --git a/library/src/scala/collection/convert/AsJavaConverters.scala b/library/src/scala/collection/convert/AsJavaConverters.scala
index 39f34f131585..f82546e251a7 100644
--- a/library/src/scala/collection/convert/AsJavaConverters.scala
+++ b/library/src/scala/collection/convert/AsJavaConverters.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package convert
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.{concurrent => juc}
 import java.{lang => jl, util => ju}
 
diff --git a/library/src/scala/collection/convert/AsJavaExtensions.scala b/library/src/scala/collection/convert/AsJavaExtensions.scala
index f980c7094210..406ad7e8b82f 100644
--- a/library/src/scala/collection/convert/AsJavaExtensions.scala
+++ b/library/src/scala/collection/convert/AsJavaExtensions.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package convert
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.{concurrent => juc}
 import java.{lang => jl, util => ju}
 
diff --git a/library/src/scala/collection/convert/AsScalaConverters.scala b/library/src/scala/collection/convert/AsScalaConverters.scala
index 626969690932..dac9b9484369 100644
--- a/library/src/scala/collection/convert/AsScalaConverters.scala
+++ b/library/src/scala/collection/convert/AsScalaConverters.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package convert
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.{concurrent => juc}
 import java.{lang => jl, util => ju}
 
diff --git a/library/src/scala/collection/convert/AsScalaExtensions.scala b/library/src/scala/collection/convert/AsScalaExtensions.scala
index a23ecf3137b7..65f017495280 100644
--- a/library/src/scala/collection/convert/AsScalaExtensions.scala
+++ b/library/src/scala/collection/convert/AsScalaExtensions.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package convert
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.{concurrent => juc}
 import java.{lang => jl, util => ju}
 
diff --git a/library/src/scala/collection/convert/ImplicitConversions.scala b/library/src/scala/collection/convert/ImplicitConversions.scala
index 807f85662812..ef72a79d5795 100644
--- a/library/src/scala/collection/convert/ImplicitConversions.scala
+++ b/library/src/scala/collection/convert/ImplicitConversions.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package convert
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.{concurrent => juc}
 import java.{lang => jl, util => ju}
 
diff --git a/library/src/scala/collection/convert/JavaCollectionWrappers.scala b/library/src/scala/collection/convert/JavaCollectionWrappers.scala
index 0a9510bc1ad5..1679491efcb0 100644
--- a/library/src/scala/collection/convert/JavaCollectionWrappers.scala
+++ b/library/src/scala/collection/convert/JavaCollectionWrappers.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package convert
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.{concurrent => juc}
 import java.util.{NavigableMap}
 import java.{lang => jl, util => ju}
diff --git a/library/src/scala/collection/convert/StreamExtensions.scala b/library/src/scala/collection/convert/StreamExtensions.scala
index 4a588b389c61..4457989ead40 100644
--- a/library/src/scala/collection/convert/StreamExtensions.scala
+++ b/library/src/scala/collection/convert/StreamExtensions.scala
@@ -12,7 +12,7 @@
 
 package scala.collection.convert
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.Spliterator
 import java.util.stream._
 import java.{lang => jl}
diff --git a/library/src/scala/collection/convert/impl/ArrayStepper.scala b/library/src/scala/collection/convert/impl/ArrayStepper.scala
index 1ab6d98fd90e..b53dab574909 100644
--- a/library/src/scala/collection/convert/impl/ArrayStepper.scala
+++ b/library/src/scala/collection/convert/impl/ArrayStepper.scala
@@ -13,7 +13,7 @@
 package scala.collection.convert
 package impl
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection._
 
 private[collection] class ObjectArrayStepper[A <: Object](underlying: Array[A], _i0: Int, _iN: Int)
diff --git a/library/src/scala/collection/convert/impl/BinaryTreeStepper.scala b/library/src/scala/collection/convert/impl/BinaryTreeStepper.scala
index e126f03f3f6a..87823ced9cee 100644
--- a/library/src/scala/collection/convert/impl/BinaryTreeStepper.scala
+++ b/library/src/scala/collection/convert/impl/BinaryTreeStepper.scala
@@ -13,7 +13,7 @@
 package scala.collection.convert
 package impl
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.Spliterator
 
 import annotation.tailrec
diff --git a/library/src/scala/collection/convert/impl/BitSetStepper.scala b/library/src/scala/collection/convert/impl/BitSetStepper.scala
index 2ee95c51b6ef..a7fa44685d80 100644
--- a/library/src/scala/collection/convert/impl/BitSetStepper.scala
+++ b/library/src/scala/collection/convert/impl/BitSetStepper.scala
@@ -13,7 +13,7 @@
 package scala.collection.convert
 package impl
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.{BitSetOps, IntStepper, Stepper}
 
diff --git a/library/src/scala/collection/convert/impl/ChampStepper.scala b/library/src/scala/collection/convert/impl/ChampStepper.scala
index 33de8e3dbcfc..2973cd1ba9d2 100644
--- a/library/src/scala/collection/convert/impl/ChampStepper.scala
+++ b/library/src/scala/collection/convert/impl/ChampStepper.scala
@@ -13,7 +13,7 @@
 package scala.collection.convert
 package impl
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection._
 import scala.collection.immutable.Node
diff --git a/library/src/scala/collection/convert/impl/InOrderStepperBase.scala b/library/src/scala/collection/convert/impl/InOrderStepperBase.scala
index 2d1827248683..544bfff010d8 100644
--- a/library/src/scala/collection/convert/impl/InOrderStepperBase.scala
+++ b/library/src/scala/collection/convert/impl/InOrderStepperBase.scala
@@ -13,7 +13,7 @@
 package scala.collection.convert
 package impl
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.Spliterator
 
 import scala.collection.Stepper.EfficientSplit
diff --git a/library/src/scala/collection/convert/impl/IndexedSeqStepper.scala b/library/src/scala/collection/convert/impl/IndexedSeqStepper.scala
index 51437629f75b..5e4717c55fe1 100644
--- a/library/src/scala/collection/convert/impl/IndexedSeqStepper.scala
+++ b/library/src/scala/collection/convert/impl/IndexedSeqStepper.scala
@@ -13,7 +13,7 @@
 package scala.collection.convert
 package impl
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection._
 
 private[collection] class AnyIndexedSeqStepper[A](underlying: collection.IndexedSeqOps[A, AnyConstr, _], _i0: Int, _iN: Int)
diff --git a/library/src/scala/collection/convert/impl/IndexedStepperBase.scala b/library/src/scala/collection/convert/impl/IndexedStepperBase.scala
index b193590d6043..3acb743e7c57 100644
--- a/library/src/scala/collection/convert/impl/IndexedStepperBase.scala
+++ b/library/src/scala/collection/convert/impl/IndexedStepperBase.scala
@@ -13,7 +13,7 @@
 package scala.collection.convert
 package impl
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.Spliterator
 
 import scala.collection.Stepper.EfficientSplit
diff --git a/library/src/scala/collection/convert/impl/IteratorStepper.scala b/library/src/scala/collection/convert/impl/IteratorStepper.scala
index 41cb94b8452b..9f8aab9c2165 100644
--- a/library/src/scala/collection/convert/impl/IteratorStepper.scala
+++ b/library/src/scala/collection/convert/impl/IteratorStepper.scala
@@ -13,7 +13,7 @@
 package scala.collection.convert
 package impl
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.Spliterator
 
 import scala.collection.{AnyStepper, DoubleStepper, IntStepper, LongStepper, Stepper}
diff --git a/library/src/scala/collection/convert/impl/NumericRangeStepper.scala b/library/src/scala/collection/convert/impl/NumericRangeStepper.scala
index eafa21781bee..a44efa52248c 100644
--- a/library/src/scala/collection/convert/impl/NumericRangeStepper.scala
+++ b/library/src/scala/collection/convert/impl/NumericRangeStepper.scala
@@ -13,7 +13,7 @@
 package scala.collection.convert
 package impl
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.{AnyStepper, IntStepper, LongStepper, Stepper}
 import scala.collection.immutable.NumericRange
 
diff --git a/library/src/scala/collection/convert/impl/RangeStepper.scala b/library/src/scala/collection/convert/impl/RangeStepper.scala
index f2638e866286..283975ff0332 100644
--- a/library/src/scala/collection/convert/impl/RangeStepper.scala
+++ b/library/src/scala/collection/convert/impl/RangeStepper.scala
@@ -13,7 +13,7 @@
 package scala.collection.convert
 package impl
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.{IntStepper, Stepper}
 
 /** Implements Stepper on an integer Range.  You don't actually need the Range to do this,
diff --git a/library/src/scala/collection/convert/impl/StringStepper.scala b/library/src/scala/collection/convert/impl/StringStepper.scala
index fff945fe97ff..72d4e67ef1cb 100644
--- a/library/src/scala/collection/convert/impl/StringStepper.scala
+++ b/library/src/scala/collection/convert/impl/StringStepper.scala
@@ -13,7 +13,7 @@
 package scala.collection.convert
 package impl
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.lang.Character.{charCount, isLowSurrogate}
 import java.util.Spliterator
 
diff --git a/library/src/scala/collection/convert/impl/TableStepper.scala b/library/src/scala/collection/convert/impl/TableStepper.scala
index 6891d4179536..324732a0c2d1 100644
--- a/library/src/scala/collection/convert/impl/TableStepper.scala
+++ b/library/src/scala/collection/convert/impl/TableStepper.scala
@@ -13,7 +13,7 @@
 package scala.collection.convert
 package impl
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection._
 
diff --git a/library/src/scala/collection/convert/impl/VectorStepper.scala b/library/src/scala/collection/convert/impl/VectorStepper.scala
index e4e0c4270078..85f349922f48 100644
--- a/library/src/scala/collection/convert/impl/VectorStepper.scala
+++ b/library/src/scala/collection/convert/impl/VectorStepper.scala
@@ -13,7 +13,7 @@
 package scala.collection.convert
 package impl
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection._
 
 private[convert] abstract class VectorStepperBase[Sub >: Null, Semi <: Sub](
diff --git a/library/src/scala/collection/generic/BitOperations.scala b/library/src/scala/collection/generic/BitOperations.scala
index 4f0c5d1db233..39aa29d1daf9 100644
--- a/library/src/scala/collection/generic/BitOperations.scala
+++ b/library/src/scala/collection/generic/BitOperations.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package generic
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Some bit operations.
   *
diff --git a/library/src/scala/collection/generic/CommonErrors.scala b/library/src/scala/collection/generic/CommonErrors.scala
index c0b740e8afed..3ced8e3debbf 100644
--- a/library/src/scala/collection/generic/CommonErrors.scala
+++ b/library/src/scala/collection/generic/CommonErrors.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package generic
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Some precomputed common errors to reduce the generated code size.
   */
diff --git a/library/src/scala/collection/generic/DefaultSerializationProxy.scala b/library/src/scala/collection/generic/DefaultSerializationProxy.scala
index 028469e593a4..8b3422ed8407 100644
--- a/library/src/scala/collection/generic/DefaultSerializationProxy.scala
+++ b/library/src/scala/collection/generic/DefaultSerializationProxy.scala
@@ -14,7 +14,7 @@ package scala.collection.generic
 
 import java.io.{ObjectInputStream, ObjectOutputStream}
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.{Factory, Iterable}
 import scala.collection.mutable.Builder
 
diff --git a/library/src/scala/collection/generic/IsIterable.scala b/library/src/scala/collection/generic/IsIterable.scala
index 2b2da73d3564..643b9c2ee2bc 100644
--- a/library/src/scala/collection/generic/IsIterable.scala
+++ b/library/src/scala/collection/generic/IsIterable.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package generic
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A trait which can be used to avoid code duplication when defining extension
  *  methods that should be applicable both to existing Scala collections (i.e.,
diff --git a/library/src/scala/collection/generic/IsIterableOnce.scala b/library/src/scala/collection/generic/IsIterableOnce.scala
index 25772d42d509..3cc2c8e53651 100644
--- a/library/src/scala/collection/generic/IsIterableOnce.scala
+++ b/library/src/scala/collection/generic/IsIterableOnce.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package generic
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Type class witnessing that a collection representation type `Repr` has
  *  elements of type `A` and has a conversion to `IterableOnce[A]`.
diff --git a/library/src/scala/collection/generic/IsMap.scala b/library/src/scala/collection/generic/IsMap.scala
index b9cb7e0b4487..cb578873caf6 100644
--- a/library/src/scala/collection/generic/IsMap.scala
+++ b/library/src/scala/collection/generic/IsMap.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package generic
 
-import scala.language.`2`
+import scala.language.`2.13`
 import IsMap.Tupled
 import scala.collection.immutable.{IntMap, LongMap}
 
diff --git a/library/src/scala/collection/generic/IsSeq.scala b/library/src/scala/collection/generic/IsSeq.scala
index 03bb02ed0054..ec0fb8993d0b 100644
--- a/library/src/scala/collection/generic/IsSeq.scala
+++ b/library/src/scala/collection/generic/IsSeq.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package generic
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.reflect.ClassTag
 
 /** Type class witnessing that a collection representation type `Repr` has
diff --git a/library/src/scala/collection/generic/Subtractable.scala b/library/src/scala/collection/generic/Subtractable.scala
index 4b69a5b53487..2e06819b6832 100644
--- a/library/src/scala/collection/generic/Subtractable.scala
+++ b/library/src/scala/collection/generic/Subtractable.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package generic
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** This trait represents collection-like objects that can be reduced
   *  using a '+' operator. It defines variants of `-` and `--`
diff --git a/library/src/scala/collection/generic/package.scala b/library/src/scala/collection/generic/package.scala
index c38e886dd646..0dc855d81d54 100644
--- a/library/src/scala/collection/generic/package.scala
+++ b/library/src/scala/collection/generic/package.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 package object generic {
   @deprecated("Clearable was moved from collection.generic to collection.mutable", "2.13.0")
diff --git a/library/src/scala/collection/immutable/ArraySeq.scala b/library/src/scala/collection/immutable/ArraySeq.scala
index 1e5fdad836fd..9cd2700779fb 100644
--- a/library/src/scala/collection/immutable/ArraySeq.scala
+++ b/library/src/scala/collection/immutable/ArraySeq.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.Arrays
 
 import scala.annotation.unchecked.uncheckedVariance
diff --git a/library/src/scala/collection/immutable/BitSet.scala b/library/src/scala/collection/immutable/BitSet.scala
index 06ecbfee48c1..c454727fe4b9 100644
--- a/library/src/scala/collection/immutable/BitSet.scala
+++ b/library/src/scala/collection/immutable/BitSet.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import BitSetOps.{LogWL, updateArray}
 import mutable.Builder
 import scala.annotation.{implicitNotFound, nowarn}
diff --git a/library/src/scala/collection/immutable/ChampCommon.scala b/library/src/scala/collection/immutable/ChampCommon.scala
index 1305ddbe8423..899525e822a6 100644
--- a/library/src/scala/collection/immutable/ChampCommon.scala
+++ b/library/src/scala/collection/immutable/ChampCommon.scala
@@ -12,7 +12,7 @@
 
 package scala.collection.immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.AbstractIterator
 import java.lang.Integer.bitCount
 import java.lang.Math.ceil
diff --git a/library/src/scala/collection/immutable/HashMap.scala b/library/src/scala/collection/immutable/HashMap.scala
index 15596f1a35d8..eefdf6b6adbb 100644
--- a/library/src/scala/collection/immutable/HashMap.scala
+++ b/library/src/scala/collection/immutable/HashMap.scala
@@ -13,7 +13,7 @@
 package scala
 package collection.immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.lang.Integer.bitCount
 import java.lang.System.arraycopy
 
diff --git a/library/src/scala/collection/immutable/HashSet.scala b/library/src/scala/collection/immutable/HashSet.scala
index b92488c8c64a..8ce8035fd015 100644
--- a/library/src/scala/collection/immutable/HashSet.scala
+++ b/library/src/scala/collection/immutable/HashSet.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.lang.Integer.{bitCount, numberOfTrailingZeros}
 import java.lang.System.arraycopy
 
diff --git a/library/src/scala/collection/immutable/IntMap.scala b/library/src/scala/collection/immutable/IntMap.scala
index f529028b4eb0..1728da6c5710 100644
--- a/library/src/scala/collection/immutable/IntMap.scala
+++ b/library/src/scala/collection/immutable/IntMap.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.generic.{BitOperations, DefaultSerializationProxy}
 import scala.collection.mutable.{Builder, ImmutableBuilder}
 import scala.annotation.tailrec
diff --git a/library/src/scala/collection/immutable/Iterable.scala b/library/src/scala/collection/immutable/Iterable.scala
index 38a153725ffc..0691663e7e4d 100644
--- a/library/src/scala/collection/immutable/Iterable.scala
+++ b/library/src/scala/collection/immutable/Iterable.scala
@@ -12,7 +12,7 @@
 
 package scala.collection.immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.{IterableFactory, IterableFactoryDefaults}
 
 /** A trait for collections that are guaranteed immutable.
diff --git a/library/src/scala/collection/immutable/LazyList.scala b/library/src/scala/collection/immutable/LazyList.scala
index 403560818bd9..bcf5f5df17a8 100644
--- a/library/src/scala/collection/immutable/LazyList.scala
+++ b/library/src/scala/collection/immutable/LazyList.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.io.{ObjectInputStream, ObjectOutputStream}
 import java.lang.{StringBuilder => JStringBuilder}
 
diff --git a/library/src/scala/collection/immutable/List.scala b/library/src/scala/collection/immutable/List.scala
index 4d5a91068a67..eff8a8ac8c8a 100644
--- a/library/src/scala/collection/immutable/List.scala
+++ b/library/src/scala/collection/immutable/List.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.unchecked.uncheckedVariance
 import scala.annotation.tailrec
 import mutable.{Builder, ListBuffer}
diff --git a/library/src/scala/collection/immutable/ListMap.scala b/library/src/scala/collection/immutable/ListMap.scala
index 5585e12c3948..8b2cd61175fe 100644
--- a/library/src/scala/collection/immutable/ListMap.scala
+++ b/library/src/scala/collection/immutable/ListMap.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.{nowarn, tailrec}
 import scala.collection.mutable.ReusableBuilder
 import scala.collection.generic.DefaultSerializable
diff --git a/library/src/scala/collection/immutable/ListSet.scala b/library/src/scala/collection/immutable/ListSet.scala
index f8a18e0b531d..4325bd500b14 100644
--- a/library/src/scala/collection/immutable/ListSet.scala
+++ b/library/src/scala/collection/immutable/ListSet.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import mutable.{Builder, ImmutableBuilder}
 import scala.annotation.tailrec
 import scala.collection.generic.DefaultSerializable
diff --git a/library/src/scala/collection/immutable/LongMap.scala b/library/src/scala/collection/immutable/LongMap.scala
index ceb7aca9e9db..9832b4a7d55c 100644
--- a/library/src/scala/collection/immutable/LongMap.scala
+++ b/library/src/scala/collection/immutable/LongMap.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.lang.IllegalStateException
 
 import scala.collection.generic.{BitOperations, DefaultSerializationProxy}
diff --git a/library/src/scala/collection/immutable/Map.scala b/library/src/scala/collection/immutable/Map.scala
index 533344398fdf..5219b892c063 100644
--- a/library/src/scala/collection/immutable/Map.scala
+++ b/library/src/scala/collection/immutable/Map.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.unchecked.uncheckedVariance
 import scala.collection.generic.DefaultSerializable
 import scala.collection.immutable.Map.Map4
diff --git a/library/src/scala/collection/immutable/NumericRange.scala b/library/src/scala/collection/immutable/NumericRange.scala
index 3db5d771a295..6a10bef7171f 100644
--- a/library/src/scala/collection/immutable/NumericRange.scala
+++ b/library/src/scala/collection/immutable/NumericRange.scala
@@ -12,7 +12,7 @@
 
 package scala.collection.immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.{AbstractIterator, AnyStepper, IterableFactoryDefaults, Iterator, Stepper, StepperShape}
 import scala.collection.generic.CommonErrors
diff --git a/library/src/scala/collection/immutable/Queue.scala b/library/src/scala/collection/immutable/Queue.scala
index 591abef5facb..6deaabc5c7f7 100644
--- a/library/src/scala/collection/immutable/Queue.scala
+++ b/library/src/scala/collection/immutable/Queue.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.generic.DefaultSerializable
 import scala.collection.mutable.{Builder, ListBuffer}
 
diff --git a/library/src/scala/collection/immutable/Range.scala b/library/src/scala/collection/immutable/Range.scala
index 409e1ee52b19..5fd0490596d7 100644
--- a/library/src/scala/collection/immutable/Range.scala
+++ b/library/src/scala/collection/immutable/Range.scala
@@ -13,7 +13,7 @@
 package scala
 package collection.immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.convert.impl.RangeStepper
 import scala.collection.generic.CommonErrors
diff --git a/library/src/scala/collection/immutable/RedBlackTree.scala b/library/src/scala/collection/immutable/RedBlackTree.scala
index e4b0c2c800e4..a57785bbf741 100644
--- a/library/src/scala/collection/immutable/RedBlackTree.scala
+++ b/library/src/scala/collection/immutable/RedBlackTree.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.meta.{getter, setter}
 import scala.annotation.tailrec
 import scala.runtime.Statics.releaseFence
diff --git a/library/src/scala/collection/immutable/Seq.scala b/library/src/scala/collection/immutable/Seq.scala
index e1f52ff832b1..964a7b3d52cb 100644
--- a/library/src/scala/collection/immutable/Seq.scala
+++ b/library/src/scala/collection/immutable/Seq.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 trait Seq[+A] extends Iterable[A]
                  with collection.Seq[A]
diff --git a/library/src/scala/collection/immutable/SeqMap.scala b/library/src/scala/collection/immutable/SeqMap.scala
index 74932227b227..50a5dcfce382 100644
--- a/library/src/scala/collection/immutable/SeqMap.scala
+++ b/library/src/scala/collection/immutable/SeqMap.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.mutable.{Builder, ReusableBuilder}
 
 /** A base trait for ordered, immutable maps.
diff --git a/library/src/scala/collection/immutable/Set.scala b/library/src/scala/collection/immutable/Set.scala
index f9fc47f61240..f124ca8d8edb 100644
--- a/library/src/scala/collection/immutable/Set.scala
+++ b/library/src/scala/collection/immutable/Set.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.immutable.Set.Set4
 import scala.collection.mutable.{Builder, ReusableBuilder}
 
diff --git a/library/src/scala/collection/immutable/SortedMap.scala b/library/src/scala/collection/immutable/SortedMap.scala
index ec4e1b70037a..6a62a7996213 100644
--- a/library/src/scala/collection/immutable/SortedMap.scala
+++ b/library/src/scala/collection/immutable/SortedMap.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.unchecked.uncheckedVariance
 import scala.collection.mutable.Builder
 
diff --git a/library/src/scala/collection/immutable/SortedSet.scala b/library/src/scala/collection/immutable/SortedSet.scala
index 8f70edbb1da0..8425e95dbed4 100644
--- a/library/src/scala/collection/immutable/SortedSet.scala
+++ b/library/src/scala/collection/immutable/SortedSet.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Base trait for sorted sets */
 trait SortedSet[A]
diff --git a/library/src/scala/collection/immutable/Stream.scala b/library/src/scala/collection/immutable/Stream.scala
index 7ee4530228fa..a7017a23a16d 100644
--- a/library/src/scala/collection/immutable/Stream.scala
+++ b/library/src/scala/collection/immutable/Stream.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.io.{ObjectInputStream, ObjectOutputStream}
 import java.lang.{StringBuilder => JStringBuilder}
 
diff --git a/library/src/scala/collection/immutable/StrictOptimizedSeqOps.scala b/library/src/scala/collection/immutable/StrictOptimizedSeqOps.scala
index 15ea9c37e3c9..40478aeceb86 100644
--- a/library/src/scala/collection/immutable/StrictOptimizedSeqOps.scala
+++ b/library/src/scala/collection/immutable/StrictOptimizedSeqOps.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.generic.CommonErrors
 
 /** Trait that overrides operations to take advantage of strict builders.
diff --git a/library/src/scala/collection/immutable/TreeMap.scala b/library/src/scala/collection/immutable/TreeMap.scala
index e0db92f81505..b4a7e4b6605d 100644
--- a/library/src/scala/collection/immutable/TreeMap.scala
+++ b/library/src/scala/collection/immutable/TreeMap.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.tailrec
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.generic.DefaultSerializable
diff --git a/library/src/scala/collection/immutable/TreeSeqMap.scala b/library/src/scala/collection/immutable/TreeSeqMap.scala
index a744ebfaddaf..e3a7552c5934 100644
--- a/library/src/scala/collection/immutable/TreeSeqMap.scala
+++ b/library/src/scala/collection/immutable/TreeSeqMap.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.tailrec
 
 /** This class implements an immutable map that preserves order using
diff --git a/library/src/scala/collection/immutable/TreeSet.scala b/library/src/scala/collection/immutable/TreeSet.scala
index ebf16f37e5c3..a9bf1979700a 100644
--- a/library/src/scala/collection/immutable/TreeSet.scala
+++ b/library/src/scala/collection/immutable/TreeSet.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.generic.DefaultSerializable
 import scala.collection.mutable.ReusableBuilder
diff --git a/library/src/scala/collection/immutable/Vector.scala b/library/src/scala/collection/immutable/Vector.scala
index 30272b3aedbd..4ea962fc8fa9 100644
--- a/library/src/scala/collection/immutable/Vector.scala
+++ b/library/src/scala/collection/immutable/Vector.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.lang.Math.{abs, max => mmax, min => mmin}
 import java.util.Arrays.{copyOf, copyOfRange}
 import java.util.{Arrays, Spliterator}
diff --git a/library/src/scala/collection/immutable/VectorMap.scala b/library/src/scala/collection/immutable/VectorMap.scala
index b3052639c3b6..316d02037ec0 100644
--- a/library/src/scala/collection/immutable/VectorMap.scala
+++ b/library/src/scala/collection/immutable/VectorMap.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.{nowarn, tailrec}
 
 /** This class implements immutable maps using a vector/map-based data structure, which preserves insertion order.
diff --git a/library/src/scala/collection/immutable/WrappedString.scala b/library/src/scala/collection/immutable/WrappedString.scala
index 2cbe5d273e4f..76d69c092673 100644
--- a/library/src/scala/collection/immutable/WrappedString.scala
+++ b/library/src/scala/collection/immutable/WrappedString.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.Predef.{wrapString => _, assert}
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.convert.impl.CharStringStepper
diff --git a/library/src/scala/collection/immutable/package.scala b/library/src/scala/collection/immutable/package.scala
index 93a8593f134a..061619cb8b86 100644
--- a/library/src/scala/collection/immutable/package.scala
+++ b/library/src/scala/collection/immutable/package.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 package object immutable {
   type StringOps = scala.collection.StringOps
diff --git a/library/src/scala/collection/mutable/AnyRefMap.scala b/library/src/scala/collection/mutable/AnyRefMap.scala
index 2964926a823e..3caccdbc194d 100644
--- a/library/src/scala/collection/mutable/AnyRefMap.scala
+++ b/library/src/scala/collection/mutable/AnyRefMap.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.meta.companionClass
 import scala.annotation.nowarn
 import scala.collection.generic.DefaultSerializationProxy
diff --git a/library/src/scala/collection/mutable/ArrayBuffer.scala b/library/src/scala/collection/mutable/ArrayBuffer.scala
index b788aac7aeb2..72384e3f65a2 100644
--- a/library/src/scala/collection/mutable/ArrayBuffer.scala
+++ b/library/src/scala/collection/mutable/ArrayBuffer.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.Arrays
 import scala.annotation.{nowarn, tailrec}
 import scala.collection.Stepper.EfficientSplit
diff --git a/library/src/scala/collection/mutable/ArrayBuilder.scala b/library/src/scala/collection/mutable/ArrayBuilder.scala
index 48b62468f2bb..c6bd34a4001c 100644
--- a/library/src/scala/collection/mutable/ArrayBuilder.scala
+++ b/library/src/scala/collection/mutable/ArrayBuilder.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.mutable.ArrayBuffer.resizeUp
 import scala.reflect.ClassTag
 
diff --git a/library/src/scala/collection/mutable/ArrayDeque.scala b/library/src/scala/collection/mutable/ArrayDeque.scala
index 0060e5eaaea8..1cd8e6ff5716 100644
--- a/library/src/scala/collection/mutable/ArrayDeque.scala
+++ b/library/src/scala/collection/mutable/ArrayDeque.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.nowarn
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.generic.{CommonErrors, DefaultSerializable}
diff --git a/library/src/scala/collection/mutable/ArraySeq.scala b/library/src/scala/collection/mutable/ArraySeq.scala
index 364fd1cd3a09..a6af2be04fff 100644
--- a/library/src/scala/collection/mutable/ArraySeq.scala
+++ b/library/src/scala/collection/mutable/ArraySeq.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.Arrays
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.convert.impl._
diff --git a/library/src/scala/collection/mutable/BitSet.scala b/library/src/scala/collection/mutable/BitSet.scala
index 069d47a681a6..39124537758f 100644
--- a/library/src/scala/collection/mutable/BitSet.scala
+++ b/library/src/scala/collection/mutable/BitSet.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.immutable.Range
 import BitSetOps.{LogWL, MaxSize}
 import scala.annotation.implicitNotFound
diff --git a/library/src/scala/collection/mutable/Buffer.scala b/library/src/scala/collection/mutable/Buffer.scala
index 10518eb9ec6a..333d86fce772 100644
--- a/library/src/scala/collection/mutable/Buffer.scala
+++ b/library/src/scala/collection/mutable/Buffer.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.nowarn
 
 
diff --git a/library/src/scala/collection/mutable/Builder.scala b/library/src/scala/collection/mutable/Builder.scala
index 1b07c97cbfc1..c545929fa33f 100644
--- a/library/src/scala/collection/mutable/Builder.scala
+++ b/library/src/scala/collection/mutable/Builder.scala
@@ -12,7 +12,7 @@
 
 package scala.collection.mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Base trait for collection builders.
   *
diff --git a/library/src/scala/collection/mutable/CheckedIndexedSeqView.scala b/library/src/scala/collection/mutable/CheckedIndexedSeqView.scala
index 947ea94b95cf..720e8ce90b95 100644
--- a/library/src/scala/collection/mutable/CheckedIndexedSeqView.scala
+++ b/library/src/scala/collection/mutable/CheckedIndexedSeqView.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 private[mutable] trait CheckedIndexedSeqView[+A] extends IndexedSeqView[A] {
   protected val mutationCount: () => Int
diff --git a/library/src/scala/collection/mutable/Cloneable.scala b/library/src/scala/collection/mutable/Cloneable.scala
index 39ec0d7abd56..7480b5bae613 100644
--- a/library/src/scala/collection/mutable/Cloneable.scala
+++ b/library/src/scala/collection/mutable/Cloneable.scala
@@ -12,7 +12,7 @@
 
 package scala.collection.mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A trait for cloneable collections.
   *
diff --git a/library/src/scala/collection/mutable/CollisionProofHashMap.scala b/library/src/scala/collection/mutable/CollisionProofHashMap.scala
index d8d4429a8263..18d469c42900 100644
--- a/library/src/scala/collection/mutable/CollisionProofHashMap.scala
+++ b/library/src/scala/collection/mutable/CollisionProofHashMap.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.{unchecked => uc}
 import scala.annotation.{implicitNotFound, tailrec, unused}
 import scala.annotation.unchecked.uncheckedVariance
diff --git a/library/src/scala/collection/mutable/Growable.scala b/library/src/scala/collection/mutable/Growable.scala
index 9dad685fc9e6..9caed94240e2 100644
--- a/library/src/scala/collection/mutable/Growable.scala
+++ b/library/src/scala/collection/mutable/Growable.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** This trait forms part of collections that can be augmented
   * using a `+=` operator and that can be cleared of all elements using
diff --git a/library/src/scala/collection/mutable/GrowableBuilder.scala b/library/src/scala/collection/mutable/GrowableBuilder.scala
index dea1846e25f5..e98aa16c2581 100644
--- a/library/src/scala/collection/mutable/GrowableBuilder.scala
+++ b/library/src/scala/collection/mutable/GrowableBuilder.scala
@@ -13,7 +13,7 @@
 package scala
 package collection.mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** The canonical builder for collections that are growable, i.e. that support an
   * efficient `+=` method which adds an element to the collection.
diff --git a/library/src/scala/collection/mutable/HashMap.scala b/library/src/scala/collection/mutable/HashMap.scala
index afa475a3704d..7980ffe08bd7 100644
--- a/library/src/scala/collection/mutable/HashMap.scala
+++ b/library/src/scala/collection/mutable/HashMap.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.{nowarn, tailrec}
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.generic.DefaultSerializationProxy
diff --git a/library/src/scala/collection/mutable/HashSet.scala b/library/src/scala/collection/mutable/HashSet.scala
index 1314c7ac41dc..df0cb0a9ee33 100644
--- a/library/src/scala/collection/mutable/HashSet.scala
+++ b/library/src/scala/collection/mutable/HashSet.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.tailrec
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.generic.DefaultSerializationProxy
diff --git a/library/src/scala/collection/mutable/HashTable.scala b/library/src/scala/collection/mutable/HashTable.scala
index 7831854c8fdb..08bdd68eece3 100644
--- a/library/src/scala/collection/mutable/HashTable.scala
+++ b/library/src/scala/collection/mutable/HashTable.scala
@@ -13,7 +13,7 @@
 package scala
 package collection.mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import collection.{AbstractIterator, Iterator}
 
 import java.lang.Integer.{numberOfLeadingZeros, rotateRight}
diff --git a/library/src/scala/collection/mutable/ImmutableBuilder.scala b/library/src/scala/collection/mutable/ImmutableBuilder.scala
index 613b54f7024f..6806367e53a4 100644
--- a/library/src/scala/collection/mutable/ImmutableBuilder.scala
+++ b/library/src/scala/collection/mutable/ImmutableBuilder.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
   * Reusable builder for immutable collections
diff --git a/library/src/scala/collection/mutable/IndexedSeq.scala b/library/src/scala/collection/mutable/IndexedSeq.scala
index ac57d3f35903..9fa3728c7c1d 100644
--- a/library/src/scala/collection/mutable/IndexedSeq.scala
+++ b/library/src/scala/collection/mutable/IndexedSeq.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 trait IndexedSeq[T] extends Seq[T]
   with scala.collection.IndexedSeq[T]
diff --git a/library/src/scala/collection/mutable/Iterable.scala b/library/src/scala/collection/mutable/Iterable.scala
index d686a8f3c66f..7f018b00c17f 100644
--- a/library/src/scala/collection/mutable/Iterable.scala
+++ b/library/src/scala/collection/mutable/Iterable.scala
@@ -12,7 +12,7 @@
 
 package scala.collection.mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.{IterableFactory, IterableFactoryDefaults}
 
 trait Iterable[A]
diff --git a/library/src/scala/collection/mutable/LinkedHashMap.scala b/library/src/scala/collection/mutable/LinkedHashMap.scala
index e0d8288be713..5a4f9285972d 100644
--- a/library/src/scala/collection/mutable/LinkedHashMap.scala
+++ b/library/src/scala/collection/mutable/LinkedHashMap.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.{nowarn, tailrec}
 import scala.collection.generic.DefaultSerializable
 import scala.util.hashing.MurmurHash3
diff --git a/library/src/scala/collection/mutable/LinkedHashSet.scala b/library/src/scala/collection/mutable/LinkedHashSet.scala
index 29cadfabd1fb..79d3d62a41d1 100644
--- a/library/src/scala/collection/mutable/LinkedHashSet.scala
+++ b/library/src/scala/collection/mutable/LinkedHashSet.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.{nowarn, tailrec}
 import scala.collection.generic.DefaultSerializable
 import scala.util.hashing.MurmurHash3
diff --git a/library/src/scala/collection/mutable/ListBuffer.scala b/library/src/scala/collection/mutable/ListBuffer.scala
index ec8f9e4a708e..e5858f79eb5e 100644
--- a/library/src/scala/collection/mutable/ListBuffer.scala
+++ b/library/src/scala/collection/mutable/ListBuffer.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.{nowarn, tailrec}
 import scala.collection.generic.CommonErrors
 import scala.collection.immutable.{::, List, Nil}
diff --git a/library/src/scala/collection/mutable/ListMap.scala b/library/src/scala/collection/mutable/ListMap.scala
index bf13e11b8110..3bb7e9bd54bb 100644
--- a/library/src/scala/collection/mutable/ListMap.scala
+++ b/library/src/scala/collection/mutable/ListMap.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.tailrec
 import scala.collection.generic.DefaultSerializable
 import scala.collection.immutable.List
diff --git a/library/src/scala/collection/mutable/LongMap.scala b/library/src/scala/collection/mutable/LongMap.scala
index bbebe81a7ee3..a56d874a5fc2 100644
--- a/library/src/scala/collection/mutable/LongMap.scala
+++ b/library/src/scala/collection/mutable/LongMap.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.generic.DefaultSerializationProxy
 import scala.language.implicitConversions
 
diff --git a/library/src/scala/collection/mutable/Map.scala b/library/src/scala/collection/mutable/Map.scala
index 641204d18668..c07787417a19 100644
--- a/library/src/scala/collection/mutable/Map.scala
+++ b/library/src/scala/collection/mutable/Map.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Base type of mutable Maps */
 trait Map[K, V]
diff --git a/library/src/scala/collection/mutable/MultiMap.scala b/library/src/scala/collection/mutable/MultiMap.scala
index d15bca1fb2bd..f96a2ca94754 100644
--- a/library/src/scala/collection/mutable/MultiMap.scala
+++ b/library/src/scala/collection/mutable/MultiMap.scala
@@ -12,7 +12,7 @@
 
 package scala.collection.mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A trait for mutable maps with multiple values assigned to a key.
   *
diff --git a/library/src/scala/collection/mutable/MutationTracker.scala b/library/src/scala/collection/mutable/MutationTracker.scala
index ea9d4f7efebf..6b41ac22db37 100644
--- a/library/src/scala/collection/mutable/MutationTracker.scala
+++ b/library/src/scala/collection/mutable/MutationTracker.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.ConcurrentModificationException
 
 /**
diff --git a/library/src/scala/collection/mutable/OpenHashMap.scala b/library/src/scala/collection/mutable/OpenHashMap.scala
index 99b470dc7837..36d77098512b 100644
--- a/library/src/scala/collection/mutable/OpenHashMap.scala
+++ b/library/src/scala/collection/mutable/OpenHashMap.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.lang.Integer.numberOfLeadingZeros
 import java.util.ConcurrentModificationException
 import scala.collection.generic.DefaultSerializable
diff --git a/library/src/scala/collection/mutable/PriorityQueue.scala b/library/src/scala/collection/mutable/PriorityQueue.scala
index 14a15c2e159b..f0146450e50f 100644
--- a/library/src/scala/collection/mutable/PriorityQueue.scala
+++ b/library/src/scala/collection/mutable/PriorityQueue.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.generic.DefaultSerializationProxy
 import scala.math.Ordering
 
diff --git a/library/src/scala/collection/mutable/Queue.scala b/library/src/scala/collection/mutable/Queue.scala
index 39b685092ccc..7a0c25c049b6 100644
--- a/library/src/scala/collection/mutable/Queue.scala
+++ b/library/src/scala/collection/mutable/Queue.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.nowarn
 import scala.collection.generic.DefaultSerializable
 
diff --git a/library/src/scala/collection/mutable/RedBlackTree.scala b/library/src/scala/collection/mutable/RedBlackTree.scala
index 3a5c5709af0b..e4f2c54017a8 100644
--- a/library/src/scala/collection/mutable/RedBlackTree.scala
+++ b/library/src/scala/collection/mutable/RedBlackTree.scala
@@ -13,7 +13,7 @@
 package scala
 package collection.mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.tailrec
 import collection.{AbstractIterator, Iterator}
 import java.lang.String
diff --git a/library/src/scala/collection/mutable/ReusableBuilder.scala b/library/src/scala/collection/mutable/ReusableBuilder.scala
index 624cc5e6a2ce..1cba786c749a 100644
--- a/library/src/scala/collection/mutable/ReusableBuilder.scala
+++ b/library/src/scala/collection/mutable/ReusableBuilder.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** `ReusableBuilder` is a marker trait that indicates that a `Builder`
   *  can be reused to build more than one instance of a collection.  In
diff --git a/library/src/scala/collection/mutable/Seq.scala b/library/src/scala/collection/mutable/Seq.scala
index 842c13a1d422..af729ce2f336 100644
--- a/library/src/scala/collection/mutable/Seq.scala
+++ b/library/src/scala/collection/mutable/Seq.scala
@@ -12,7 +12,7 @@
 
 package scala.collection.mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.{IterableFactoryDefaults, SeqFactory}
 
 trait Seq[A]
diff --git a/library/src/scala/collection/mutable/SeqMap.scala b/library/src/scala/collection/mutable/SeqMap.scala
index 6932b380cc50..bad3ea10b243 100644
--- a/library/src/scala/collection/mutable/SeqMap.scala
+++ b/library/src/scala/collection/mutable/SeqMap.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
   * A generic trait for ordered mutable maps. Concrete classes have to provide
diff --git a/library/src/scala/collection/mutable/Set.scala b/library/src/scala/collection/mutable/Set.scala
index 8539c9ea5442..d0d42d738351 100644
--- a/library/src/scala/collection/mutable/Set.scala
+++ b/library/src/scala/collection/mutable/Set.scala
@@ -12,7 +12,7 @@
 
 package scala.collection.mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.{IterableFactory, IterableFactoryDefaults, IterableOps}
 
 /** Base trait for mutable sets */
diff --git a/library/src/scala/collection/mutable/Shrinkable.scala b/library/src/scala/collection/mutable/Shrinkable.scala
index 9386db587b93..96171c6df024 100644
--- a/library/src/scala/collection/mutable/Shrinkable.scala
+++ b/library/src/scala/collection/mutable/Shrinkable.scala
@@ -13,7 +13,7 @@
 package scala
 package collection.mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.tailrec
 
 /** This trait forms part of collections that can be reduced
diff --git a/library/src/scala/collection/mutable/SortedMap.scala b/library/src/scala/collection/mutable/SortedMap.scala
index 72196167bb16..70c76a01c30c 100644
--- a/library/src/scala/collection/mutable/SortedMap.scala
+++ b/library/src/scala/collection/mutable/SortedMap.scala
@@ -13,7 +13,7 @@
 package scala
 package collection.mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.{SortedMapFactory, SortedMapFactoryDefaults}
 
 /**
diff --git a/library/src/scala/collection/mutable/SortedSet.scala b/library/src/scala/collection/mutable/SortedSet.scala
index fa1e8147ca27..6e7978d40d94 100644
--- a/library/src/scala/collection/mutable/SortedSet.scala
+++ b/library/src/scala/collection/mutable/SortedSet.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Base type for mutable sorted set collections
  */
diff --git a/library/src/scala/collection/mutable/Stack.scala b/library/src/scala/collection/mutable/Stack.scala
index 299fe73bd174..f888475c7544 100644
--- a/library/src/scala/collection/mutable/Stack.scala
+++ b/library/src/scala/collection/mutable/Stack.scala
@@ -12,7 +12,7 @@
 
 package scala.collection.mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.{migration, nowarn}
 import scala.collection.generic.DefaultSerializable
 import scala.collection.{IterableFactoryDefaults, IterableOnce, SeqFactory, StrictOptimizedSeqFactory, StrictOptimizedSeqOps}
diff --git a/library/src/scala/collection/mutable/StringBuilder.scala b/library/src/scala/collection/mutable/StringBuilder.scala
index 873b7f3df061..dfd778b44b34 100644
--- a/library/src/scala/collection/mutable/StringBuilder.scala
+++ b/library/src/scala/collection/mutable/StringBuilder.scala
@@ -12,7 +12,7 @@
 
 package scala.collection.mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.{IterableFactoryDefaults, IterableOnce}
 import scala.collection.immutable.WrappedString
 
diff --git a/library/src/scala/collection/mutable/TreeMap.scala b/library/src/scala/collection/mutable/TreeMap.scala
index 371dad2a2a67..85b8d897f22a 100644
--- a/library/src/scala/collection/mutable/TreeMap.scala
+++ b/library/src/scala/collection/mutable/TreeMap.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.generic.DefaultSerializable
 import scala.collection.mutable.{RedBlackTree => RB}
diff --git a/library/src/scala/collection/mutable/TreeSet.scala b/library/src/scala/collection/mutable/TreeSet.scala
index a1f044ba791f..4f302d46906e 100644
--- a/library/src/scala/collection/mutable/TreeSet.scala
+++ b/library/src/scala/collection/mutable/TreeSet.scala
@@ -13,7 +13,7 @@
 package scala
 package collection.mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.generic.DefaultSerializable
 import scala.collection.mutable.{RedBlackTree => RB}
diff --git a/library/src/scala/collection/mutable/UnrolledBuffer.scala b/library/src/scala/collection/mutable/UnrolledBuffer.scala
index c71735c5915f..4e60b3555a07 100644
--- a/library/src/scala/collection/mutable/UnrolledBuffer.scala
+++ b/library/src/scala/collection/mutable/UnrolledBuffer.scala
@@ -13,7 +13,7 @@
 package scala.collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.tailrec
 import scala.collection.generic.{CommonErrors, DefaultSerializable}
 import scala.reflect.ClassTag
diff --git a/library/src/scala/collection/mutable/WeakHashMap.scala b/library/src/scala/collection/mutable/WeakHashMap.scala
index 7ac917a90f6c..e0f592faf9f1 100644
--- a/library/src/scala/collection/mutable/WeakHashMap.scala
+++ b/library/src/scala/collection/mutable/WeakHashMap.scala
@@ -14,7 +14,7 @@ package scala
 package collection
 package mutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.nowarn
 import scala.collection.convert.JavaCollectionWrappers.{JMapWrapper, JMapWrapperLike}
 
diff --git a/library/src/scala/collection/mutable/package.scala b/library/src/scala/collection/mutable/package.scala
index 0499055b0dc4..475aec0afea7 100644
--- a/library/src/scala/collection/mutable/package.scala
+++ b/library/src/scala/collection/mutable/package.scala
@@ -12,7 +12,7 @@
 
 package scala.collection
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 package object mutable {
   @deprecated("Use ArraySeq instead of WrappedArray; it can represent both, boxed and unboxed arrays", "2.13.0")
diff --git a/library/src/scala/collection/package.scala b/library/src/scala/collection/package.scala
index 4ce27ca11cf2..aced3cb25e03 100644
--- a/library/src/scala/collection/package.scala
+++ b/library/src/scala/collection/package.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 package object collection {
   @deprecated("Use Iterable instead of Traversable", "2.13.0")
diff --git a/library/src/scala/compat/Platform.scala b/library/src/scala/compat/Platform.scala
index d79d7d4e8412..b6140e34afba 100644
--- a/library/src/scala/compat/Platform.scala
+++ b/library/src/scala/compat/Platform.scala
@@ -13,7 +13,7 @@
 package scala
 package compat
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @deprecated("Will be removed in the future.", since = "2.13.0")
 object Platform {
diff --git a/library/src/scala/concurrent/Awaitable.scala b/library/src/scala/concurrent/Awaitable.scala
index 368c81b985ca..ded8bd307987 100644
--- a/library/src/scala/concurrent/Awaitable.scala
+++ b/library/src/scala/concurrent/Awaitable.scala
@@ -13,7 +13,7 @@
 package scala.concurrent
 
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.concurrent.duration.Duration
 
 
diff --git a/library/src/scala/concurrent/BatchingExecutor.scala b/library/src/scala/concurrent/BatchingExecutor.scala
index 38e2d7e3ea80..b108af7c3eca 100644
--- a/library/src/scala/concurrent/BatchingExecutor.scala
+++ b/library/src/scala/concurrent/BatchingExecutor.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.concurrent.Executor
 import java.util.Objects
 import scala.util.control.NonFatal
diff --git a/library/src/scala/concurrent/BlockContext.scala b/library/src/scala/concurrent/BlockContext.scala
index d5084adb7277..bec31c270038 100644
--- a/library/src/scala/concurrent/BlockContext.scala
+++ b/library/src/scala/concurrent/BlockContext.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * A context to be notified by [[scala.concurrent.blocking]] when
diff --git a/library/src/scala/concurrent/Channel.scala b/library/src/scala/concurrent/Channel.scala
index 6021b92063fd..ebb3b324ef5a 100644
--- a/library/src/scala/concurrent/Channel.scala
+++ b/library/src/scala/concurrent/Channel.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** This class provides a simple FIFO queue of data objects,
  *  which are read by one or more reader threads.
diff --git a/library/src/scala/concurrent/DelayedLazyVal.scala b/library/src/scala/concurrent/DelayedLazyVal.scala
index aee3dfbed5fc..0406e7c0d7f7 100644
--- a/library/src/scala/concurrent/DelayedLazyVal.scala
+++ b/library/src/scala/concurrent/DelayedLazyVal.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A `DelayedLazyVal` is a wrapper for lengthy computations which have a
  *  valid partially computed result.
diff --git a/library/src/scala/concurrent/ExecutionContext.scala b/library/src/scala/concurrent/ExecutionContext.scala
index 6943c2e0180e..703b962a0f17 100644
--- a/library/src/scala/concurrent/ExecutionContext.scala
+++ b/library/src/scala/concurrent/ExecutionContext.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.concurrent.{ ExecutorService, Executor }
 import scala.annotation.implicitNotFound
 
diff --git a/library/src/scala/concurrent/Future.scala b/library/src/scala/concurrent/Future.scala
index f6a36ea8ab5d..05fcadf28e45 100644
--- a/library/src/scala/concurrent/Future.scala
+++ b/library/src/scala/concurrent/Future.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.concurrent.atomic.AtomicReference
 import java.util.concurrent.locks.LockSupport
 import scala.util.control.{NoStackTrace, NonFatal}
diff --git a/library/src/scala/concurrent/JavaConversions.scala b/library/src/scala/concurrent/JavaConversions.scala
index fe82406f7e38..eab15c2610b9 100644
--- a/library/src/scala/concurrent/JavaConversions.scala
+++ b/library/src/scala/concurrent/JavaConversions.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.concurrent.{ExecutorService, Executor}
 import scala.language.implicitConversions
 
diff --git a/library/src/scala/concurrent/Promise.scala b/library/src/scala/concurrent/Promise.scala
index 44d85c15dbff..3c82b9e5920f 100644
--- a/library/src/scala/concurrent/Promise.scala
+++ b/library/src/scala/concurrent/Promise.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.util.{ Try, Success, Failure }
 
 /** Promise is an object which can be completed with a value or failed
diff --git a/library/src/scala/concurrent/SyncChannel.scala b/library/src/scala/concurrent/SyncChannel.scala
index 9f21e53b9bb0..53fe27deb4fd 100644
--- a/library/src/scala/concurrent/SyncChannel.scala
+++ b/library/src/scala/concurrent/SyncChannel.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A `SyncChannel` allows one to exchange data synchronously between
  *  a reader and a writer thread. The writer thread is blocked until the
diff --git a/library/src/scala/concurrent/SyncVar.scala b/library/src/scala/concurrent/SyncVar.scala
index 3f1b4d356a97..ccb7d19f3bc7 100644
--- a/library/src/scala/concurrent/SyncVar.scala
+++ b/library/src/scala/concurrent/SyncVar.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.concurrent.TimeUnit
 
 /** A class to provide safe concurrent access to a mutable cell.
diff --git a/library/src/scala/concurrent/duration/Deadline.scala b/library/src/scala/concurrent/duration/Deadline.scala
index a2cd4eadeb1d..9270083b351c 100644
--- a/library/src/scala/concurrent/duration/Deadline.scala
+++ b/library/src/scala/concurrent/duration/Deadline.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent.duration
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * This class stores a deadline, as obtained via `Deadline.now` or the
diff --git a/library/src/scala/concurrent/duration/Duration.scala b/library/src/scala/concurrent/duration/Duration.scala
index 752bcfa28d72..4fa495c8989c 100644
--- a/library/src/scala/concurrent/duration/Duration.scala
+++ b/library/src/scala/concurrent/duration/Duration.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent.duration
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.lang.{ Double => JDouble }
 import scala.collection.StringParsers
 
diff --git a/library/src/scala/concurrent/duration/DurationConversions.scala b/library/src/scala/concurrent/duration/DurationConversions.scala
index 849d5ebefead..b90d93e02ffb 100644
--- a/library/src/scala/concurrent/duration/DurationConversions.scala
+++ b/library/src/scala/concurrent/duration/DurationConversions.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent.duration
 
-import scala.language.`2`
+import scala.language.`2.13`
 import DurationConversions._
 
 // Would be nice to limit the visibility of this trait a little bit,
diff --git a/library/src/scala/concurrent/duration/package.scala b/library/src/scala/concurrent/duration/package.scala
index 03a323d785c2..09348cdde8d5 100644
--- a/library/src/scala/concurrent/duration/package.scala
+++ b/library/src/scala/concurrent/duration/package.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.language.implicitConversions
 
 package object duration {
diff --git a/library/src/scala/concurrent/impl/ExecutionContextImpl.scala b/library/src/scala/concurrent/impl/ExecutionContextImpl.scala
index a9732349f66b..3096297f620a 100644
--- a/library/src/scala/concurrent/impl/ExecutionContextImpl.scala
+++ b/library/src/scala/concurrent/impl/ExecutionContextImpl.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent.impl
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.concurrent.{ Semaphore, ForkJoinPool, ForkJoinWorkerThread, Callable, Executor, ExecutorService, ThreadFactory, TimeUnit }
 import java.util.Collection
 import scala.concurrent.{ BlockContext, ExecutionContext, CanAwait, ExecutionContextExecutor, ExecutionContextExecutorService }
diff --git a/library/src/scala/concurrent/impl/FutureConvertersImpl.scala b/library/src/scala/concurrent/impl/FutureConvertersImpl.scala
index 9073f2f6fd2c..68c4293a439d 100644
--- a/library/src/scala/concurrent/impl/FutureConvertersImpl.scala
+++ b/library/src/scala/concurrent/impl/FutureConvertersImpl.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent.impl
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.concurrent.{CompletableFuture, CompletionStage, TimeUnit}
 import java.util.function.{BiConsumer, BiFunction, Consumer, Function => JFunction}
 
diff --git a/library/src/scala/concurrent/impl/Promise.scala b/library/src/scala/concurrent/impl/Promise.scala
index 3542bfd31c29..983a82e7bb7c 100644
--- a/library/src/scala/concurrent/impl/Promise.scala
+++ b/library/src/scala/concurrent/impl/Promise.scala
@@ -12,7 +12,7 @@
 
 package scala.concurrent.impl
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.concurrent.{Batchable, CanAwait, ExecutionContext, ExecutionException, Future, TimeoutException}
 import scala.concurrent.duration.Duration
 import scala.annotation.{nowarn, switch, tailrec}
diff --git a/library/src/scala/concurrent/package.scala b/library/src/scala/concurrent/package.scala
index 703ef97ef118..98044742538b 100644
--- a/library/src/scala/concurrent/package.scala
+++ b/library/src/scala/concurrent/package.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.concurrent.duration.Duration
 import scala.annotation.implicitNotFound
 
diff --git a/library/src/scala/deprecated.scala b/library/src/scala/deprecated.scala
index 377ff35f9a7a..181d25ebc37d 100644
--- a/library/src/scala/deprecated.scala
+++ b/library/src/scala/deprecated.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.meta._
 
 /** An annotation that designates that a definition is deprecated.
diff --git a/library/src/scala/deprecatedInheritance.scala b/library/src/scala/deprecatedInheritance.scala
index 2e534253ea5f..684c2f05249c 100644
--- a/library/src/scala/deprecatedInheritance.scala
+++ b/library/src/scala/deprecatedInheritance.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.meta._
 
 /** An annotation that designates that inheriting from a class is deprecated.
diff --git a/library/src/scala/deprecatedName.scala b/library/src/scala/deprecatedName.scala
index cbc2c2232aa7..931c6e3d348e 100644
--- a/library/src/scala/deprecatedName.scala
+++ b/library/src/scala/deprecatedName.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.meta._
 
 /** An annotation that designates that the name of a parameter is deprecated.
diff --git a/library/src/scala/deprecatedOverriding.scala b/library/src/scala/deprecatedOverriding.scala
index b54dfbaedf74..d5495c87e31a 100644
--- a/library/src/scala/deprecatedOverriding.scala
+++ b/library/src/scala/deprecatedOverriding.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.meta._
 
 /** An annotation that designates that overriding a member is deprecated.
diff --git a/library/src/scala/inline.scala b/library/src/scala/inline.scala
index de2f8a3354de..a54f29c099de 100644
--- a/library/src/scala/inline.scala
+++ b/library/src/scala/inline.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * An annotation for methods that the optimizer should inline.
diff --git a/library/src/scala/io/AnsiColor.scala b/library/src/scala/io/AnsiColor.scala
index b22478f1a123..e21db830dbb8 100644
--- a/library/src/scala/io/AnsiColor.scala
+++ b/library/src/scala/io/AnsiColor.scala
@@ -13,7 +13,7 @@
 package scala
 package io
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** ANSI escape codes providing control over text formatting and color on supporting text terminals.
   *
diff --git a/library/src/scala/io/BufferedSource.scala b/library/src/scala/io/BufferedSource.scala
index 2520159c2520..b569cce8d797 100644
--- a/library/src/scala/io/BufferedSource.scala
+++ b/library/src/scala/io/BufferedSource.scala
@@ -12,7 +12,7 @@
 
 package scala.io
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.io.{ InputStream, BufferedReader, InputStreamReader, PushbackReader }
 import Source.DefaultBufSize
 import scala.collection.{ Iterator, AbstractIterator }
diff --git a/library/src/scala/io/Codec.scala b/library/src/scala/io/Codec.scala
index dc1e876875ef..44b5becd7d78 100644
--- a/library/src/scala/io/Codec.scala
+++ b/library/src/scala/io/Codec.scala
@@ -13,7 +13,7 @@
 package scala
 package io
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.nio.charset.{CharacterCodingException, Charset, CharsetDecoder, CharsetEncoder, CodingErrorAction => Action}
 import java.nio.charset.StandardCharsets.{ISO_8859_1, UTF_8}
 import scala.annotation.migration
diff --git a/library/src/scala/io/Position.scala b/library/src/scala/io/Position.scala
index 67a4b967d0a6..0a61e4c05c9f 100644
--- a/library/src/scala/io/Position.scala
+++ b/library/src/scala/io/Position.scala
@@ -13,7 +13,7 @@
 package scala
 package io
 
-import scala.language.`2`
+import scala.language.`2.13`
 import annotation.nowarn
 
 /** The object Position provides convenience methods to encode
diff --git a/library/src/scala/io/Source.scala b/library/src/scala/io/Source.scala
index 7c4368ffcb30..c66c12d3c8e1 100644
--- a/library/src/scala/io/Source.scala
+++ b/library/src/scala/io/Source.scala
@@ -17,7 +17,7 @@ import scala.collection.{AbstractIterator, BufferedIterator}
 import java.io.{Closeable, FileInputStream, FileNotFoundException, InputStream, PrintStream, File => JFile}
 import java.net.{URI, URL}
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.nowarn
 
 /** This object provides convenience methods to create an iterable
diff --git a/library/src/scala/io/StdIn.scala b/library/src/scala/io/StdIn.scala
index 66a7611db223..b79cbce83b3b 100644
--- a/library/src/scala/io/StdIn.scala
+++ b/library/src/scala/io/StdIn.scala
@@ -13,7 +13,7 @@
 package scala
 package io
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.text.MessageFormat
 
 /** private[scala] because this is not functionality we should be providing
diff --git a/library/src/scala/jdk/Accumulator.scala b/library/src/scala/jdk/Accumulator.scala
index 6ea9d7ef543f..612e317db497 100644
--- a/library/src/scala/jdk/Accumulator.scala
+++ b/library/src/scala/jdk/Accumulator.scala
@@ -14,7 +14,7 @@ package scala.jdk
 
 import java.{lang => jl}
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.Stepper.EfficientSplit
 import scala.collection.{Stepper, StepperShape, mutable}
 import scala.language.implicitConversions
diff --git a/library/src/scala/jdk/AnyAccumulator.scala b/library/src/scala/jdk/AnyAccumulator.scala
index 064fc99ff639..94814594008c 100644
--- a/library/src/scala/jdk/AnyAccumulator.scala
+++ b/library/src/scala/jdk/AnyAccumulator.scala
@@ -12,7 +12,7 @@
 
 package scala.jdk
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.io.{ObjectInputStream, ObjectOutputStream}
 import java.util.Spliterator
 import java.util.function.Consumer
diff --git a/library/src/scala/jdk/CollectionConverters.scala b/library/src/scala/jdk/CollectionConverters.scala
index fc379237e1d4..269d93ebd00c 100644
--- a/library/src/scala/jdk/CollectionConverters.scala
+++ b/library/src/scala/jdk/CollectionConverters.scala
@@ -12,7 +12,7 @@
 
 package scala.jdk
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.convert.{AsJavaExtensions, AsScalaExtensions}
 
 /** This object provides extension methods that convert between Scala and Java collections.
diff --git a/library/src/scala/jdk/DoubleAccumulator.scala b/library/src/scala/jdk/DoubleAccumulator.scala
index 8280029b79db..403f877364c4 100644
--- a/library/src/scala/jdk/DoubleAccumulator.scala
+++ b/library/src/scala/jdk/DoubleAccumulator.scala
@@ -12,7 +12,7 @@
 
 package scala.jdk
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.io.{ObjectInputStream, ObjectOutputStream}
 import java.util.Spliterator
 import java.util.function.{Consumer, DoubleConsumer}
diff --git a/library/src/scala/jdk/DurationConverters.scala b/library/src/scala/jdk/DurationConverters.scala
index 3332abb6dc8d..bca4e6a512bb 100644
--- a/library/src/scala/jdk/DurationConverters.scala
+++ b/library/src/scala/jdk/DurationConverters.scala
@@ -12,7 +12,7 @@
 
 package scala.jdk
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.time.{Duration => JDuration}
 
 import scala.concurrent.duration.FiniteDuration
diff --git a/library/src/scala/jdk/FunctionConverters.scala b/library/src/scala/jdk/FunctionConverters.scala
index 20c97b7e731a..2332d3f2ac74 100644
--- a/library/src/scala/jdk/FunctionConverters.scala
+++ b/library/src/scala/jdk/FunctionConverters.scala
@@ -15,7 +15,7 @@
 
 package scala.jdk
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** This object provides extension methods that convert between Scala and Java function types.
   *
diff --git a/library/src/scala/jdk/FunctionExtensions.scala b/library/src/scala/jdk/FunctionExtensions.scala
index 117575bc290d..9f97426bbe12 100644
--- a/library/src/scala/jdk/FunctionExtensions.scala
+++ b/library/src/scala/jdk/FunctionExtensions.scala
@@ -15,7 +15,7 @@
 
 package scala.jdk
 
-import scala.language.`2`
+import scala.language.`2.13`
 import language.implicitConversions
 
 trait Priority3FunctionExtensions {
diff --git a/library/src/scala/jdk/FunctionWrappers.scala b/library/src/scala/jdk/FunctionWrappers.scala
index 838da8b84099..d6a4d071144d 100644
--- a/library/src/scala/jdk/FunctionWrappers.scala
+++ b/library/src/scala/jdk/FunctionWrappers.scala
@@ -15,7 +15,7 @@
 
 package scala.jdk
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 object FunctionWrappers {
   case class FromJavaBiConsumer[T, U](jf: java.util.function.BiConsumer[T, U]) extends scala.Function2[T, U, Unit] {
diff --git a/library/src/scala/jdk/FutureConverters.scala b/library/src/scala/jdk/FutureConverters.scala
index ca2da2290de6..aea951238cb7 100644
--- a/library/src/scala/jdk/FutureConverters.scala
+++ b/library/src/scala/jdk/FutureConverters.scala
@@ -12,7 +12,7 @@
 
 package scala.jdk
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.concurrent.CompletionStage
 
 import scala.concurrent.Future
diff --git a/library/src/scala/jdk/IntAccumulator.scala b/library/src/scala/jdk/IntAccumulator.scala
index 3f3a3cfef2a5..2b507940ec2e 100644
--- a/library/src/scala/jdk/IntAccumulator.scala
+++ b/library/src/scala/jdk/IntAccumulator.scala
@@ -22,7 +22,7 @@ import scala.collection.Stepper.EfficientSplit
 import scala.collection.{AnyStepper, Factory, IntStepper, SeqFactory, Stepper, StepperShape, mutable}
 import scala.language.implicitConversions
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A specialized Accumulator that holds `Int`s without boxing, see [[Accumulator]]. */
 final class IntAccumulator
diff --git a/library/src/scala/jdk/LongAccumulator.scala b/library/src/scala/jdk/LongAccumulator.scala
index 105b137e9891..dd39c6e05a4d 100644
--- a/library/src/scala/jdk/LongAccumulator.scala
+++ b/library/src/scala/jdk/LongAccumulator.scala
@@ -22,7 +22,7 @@ import scala.collection.Stepper.EfficientSplit
 import scala.collection.{AnyStepper, Factory, LongStepper, SeqFactory, Stepper, StepperShape, mutable}
 import scala.language.implicitConversions
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A specialized Accumulator that holds `Long`s without boxing, see [[Accumulator]]. */
 final class LongAccumulator
diff --git a/library/src/scala/jdk/OptionConverters.scala b/library/src/scala/jdk/OptionConverters.scala
index b8eb3743dcc0..ddf179f14c0e 100644
--- a/library/src/scala/jdk/OptionConverters.scala
+++ b/library/src/scala/jdk/OptionConverters.scala
@@ -12,7 +12,7 @@
 
 package scala.jdk
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.{Optional, OptionalDouble, OptionalInt, OptionalLong}
 
 /** This object provides extension methods that convert between Scala `Option` and Java `Optional`
diff --git a/library/src/scala/jdk/OptionShape.scala b/library/src/scala/jdk/OptionShape.scala
index 4cf565a8be55..b6540c7ad696 100644
--- a/library/src/scala/jdk/OptionShape.scala
+++ b/library/src/scala/jdk/OptionShape.scala
@@ -15,7 +15,7 @@ package scala.jdk
 import java.util.{Optional, OptionalDouble, OptionalInt, OptionalLong}
 import java.{lang => jl}
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.implicitNotFound
 
 /** A type class implementing conversions from a generic Scala `Option` or Java `Optional` to
diff --git a/library/src/scala/jdk/StreamConverters.scala b/library/src/scala/jdk/StreamConverters.scala
index f4aaad90d998..c0cf5a2c5cc8 100644
--- a/library/src/scala/jdk/StreamConverters.scala
+++ b/library/src/scala/jdk/StreamConverters.scala
@@ -12,7 +12,7 @@
 
 package scala.jdk
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.convert.StreamExtensions
 
 /** This object provides extension methods to create [[java.util.stream.Stream Java Streams]] that
diff --git a/library/src/scala/jdk/javaapi/CollectionConverters.scala b/library/src/scala/jdk/javaapi/CollectionConverters.scala
index 3d1dd3e3de52..e3e7e036b9e7 100644
--- a/library/src/scala/jdk/javaapi/CollectionConverters.scala
+++ b/library/src/scala/jdk/javaapi/CollectionConverters.scala
@@ -12,7 +12,7 @@
 
 package scala.jdk.javaapi
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.convert.{AsJavaConverters, AsScalaConverters}
 
 /** This object contains methods that convert between Scala and Java collections.
diff --git a/library/src/scala/jdk/javaapi/DurationConverters.scala b/library/src/scala/jdk/javaapi/DurationConverters.scala
index 60b4ba22e698..f2646f781e49 100644
--- a/library/src/scala/jdk/javaapi/DurationConverters.scala
+++ b/library/src/scala/jdk/javaapi/DurationConverters.scala
@@ -12,7 +12,7 @@
 
 package scala.jdk.javaapi
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.time.temporal.ChronoUnit
 import java.time.{Duration => JDuration}
 import java.util.concurrent.TimeUnit
diff --git a/library/src/scala/jdk/javaapi/FunctionConverters.scala b/library/src/scala/jdk/javaapi/FunctionConverters.scala
index 617ba4fe5896..9a5daea45a9c 100644
--- a/library/src/scala/jdk/javaapi/FunctionConverters.scala
+++ b/library/src/scala/jdk/javaapi/FunctionConverters.scala
@@ -15,7 +15,7 @@
 
 package scala.jdk.javaapi
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** This object contains methods that convert between Scala and Java function types.
   *
diff --git a/library/src/scala/jdk/javaapi/FutureConverters.scala b/library/src/scala/jdk/javaapi/FutureConverters.scala
index 4a6f693827bb..c1538e8d1c31 100644
--- a/library/src/scala/jdk/javaapi/FutureConverters.scala
+++ b/library/src/scala/jdk/javaapi/FutureConverters.scala
@@ -12,7 +12,7 @@
 
 package scala.jdk.javaapi
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.concurrent.{CompletableFuture, CompletionStage}
 import scala.concurrent.impl.FutureConvertersImpl.{CF, P}
 import scala.concurrent.{ExecutionContext, Future}
diff --git a/library/src/scala/jdk/javaapi/OptionConverters.scala b/library/src/scala/jdk/javaapi/OptionConverters.scala
index f486706547ae..93b6720c8eb4 100644
--- a/library/src/scala/jdk/javaapi/OptionConverters.scala
+++ b/library/src/scala/jdk/javaapi/OptionConverters.scala
@@ -12,7 +12,7 @@
 
 package scala.jdk.javaapi
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.{Optional, OptionalDouble, OptionalInt, OptionalLong}
 import java.{lang => jl}
 
diff --git a/library/src/scala/jdk/javaapi/StreamConverters.scala b/library/src/scala/jdk/javaapi/StreamConverters.scala
index 456d6ab12b48..f91c34e0b711 100644
--- a/library/src/scala/jdk/javaapi/StreamConverters.scala
+++ b/library/src/scala/jdk/javaapi/StreamConverters.scala
@@ -12,7 +12,7 @@
 
 package scala.jdk.javaapi
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.stream.{DoubleStream, IntStream, LongStream, Stream, StreamSupport}
 import java.{lang => jl}
 
diff --git a/library/src/scala/jdk/package.scala b/library/src/scala/jdk/package.scala
index 93b099ae5fcb..b3188ae0faa3 100644
--- a/library/src/scala/jdk/package.scala
+++ b/library/src/scala/jdk/package.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** The jdk package contains utilities to interact with JDK classes.
  * 
diff --git a/library/src/scala/language.scala b/library/src/scala/language.scala
index 4e4c12572f07..12354e85833d 100644
--- a/library/src/scala/language.scala
+++ b/library/src/scala/language.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  *  The `scala.language` object controls the language features available to the programmer, as proposed in the
diff --git a/library/src/scala/languageFeature.scala b/library/src/scala/languageFeature.scala
index 663f7cf29170..8ce9724ecc17 100644
--- a/library/src/scala/languageFeature.scala
+++ b/library/src/scala/languageFeature.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.meta
 
 object languageFeature {
diff --git a/library/src/scala/math/BigDecimal.scala b/library/src/scala/math/BigDecimal.scala
index b62a5d842e73..7e0cb6434401 100644
--- a/library/src/scala/math/BigDecimal.scala
+++ b/library/src/scala/math/BigDecimal.scala
@@ -13,7 +13,7 @@
 package scala
 package math
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.language.implicitConversions
 
 import java.math.{
diff --git a/library/src/scala/math/BigInt.scala b/library/src/scala/math/BigInt.scala
index 33beacf5a413..cf7c45d5682a 100644
--- a/library/src/scala/math/BigInt.scala
+++ b/library/src/scala/math/BigInt.scala
@@ -15,7 +15,7 @@ package math
 
 import java.math.BigInteger
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.nowarn
 import scala.language.implicitConversions
 import scala.collection.immutable.NumericRange
diff --git a/library/src/scala/math/Equiv.scala b/library/src/scala/math/Equiv.scala
index 4f3952a46596..4c708783f20a 100644
--- a/library/src/scala/math/Equiv.scala
+++ b/library/src/scala/math/Equiv.scala
@@ -13,7 +13,7 @@
 package scala
 package math
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.Comparator
 import scala.annotation.migration
 
diff --git a/library/src/scala/math/Fractional.scala b/library/src/scala/math/Fractional.scala
index 9bcdd07068b6..e0469d9cb054 100644
--- a/library/src/scala/math/Fractional.scala
+++ b/library/src/scala/math/Fractional.scala
@@ -13,7 +13,7 @@
 package scala
 package math
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.language.implicitConversions
 
 trait Fractional[T] extends Numeric[T] {
diff --git a/library/src/scala/math/Integral.scala b/library/src/scala/math/Integral.scala
index dfd9dcef4d93..89465fb81023 100644
--- a/library/src/scala/math/Integral.scala
+++ b/library/src/scala/math/Integral.scala
@@ -13,7 +13,7 @@
 package scala
 package math
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.language.implicitConversions
 
 trait Integral[T] extends Numeric[T] {
diff --git a/library/src/scala/math/Numeric.scala b/library/src/scala/math/Numeric.scala
index 8a5b71e4ef9f..e129a98e9fdd 100644
--- a/library/src/scala/math/Numeric.scala
+++ b/library/src/scala/math/Numeric.scala
@@ -13,7 +13,7 @@
 package scala
 package math
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.StringParsers
 import scala.language.implicitConversions
 import scala.util.Try
diff --git a/library/src/scala/math/Ordered.scala b/library/src/scala/math/Ordered.scala
index 887b5d365566..88109ff5f854 100644
--- a/library/src/scala/math/Ordered.scala
+++ b/library/src/scala/math/Ordered.scala
@@ -13,7 +13,7 @@
 package scala
 package math
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.language.implicitConversions
 
 /** A trait for data that have a single, natural ordering.  See
diff --git a/library/src/scala/math/Ordering.scala b/library/src/scala/math/Ordering.scala
index bf5552137fc0..e8d94a564665 100644
--- a/library/src/scala/math/Ordering.scala
+++ b/library/src/scala/math/Ordering.scala
@@ -13,7 +13,7 @@
 package scala
 package math
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.util.Comparator
 
 import scala.language.implicitConversions
diff --git a/library/src/scala/math/PartialOrdering.scala b/library/src/scala/math/PartialOrdering.scala
index da922e1e2caf..0ba83b9b459a 100644
--- a/library/src/scala/math/PartialOrdering.scala
+++ b/library/src/scala/math/PartialOrdering.scala
@@ -13,7 +13,7 @@
 package scala
 package math
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A trait for representing partial orderings.  It is important to
  *  distinguish between a type that has a partial order and a representation
diff --git a/library/src/scala/math/PartiallyOrdered.scala b/library/src/scala/math/PartiallyOrdered.scala
index f3b014a8ec64..0d9c2574c2cf 100644
--- a/library/src/scala/math/PartiallyOrdered.scala
+++ b/library/src/scala/math/PartiallyOrdered.scala
@@ -13,7 +13,7 @@
 package scala
 package math
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A class for partially ordered data.
  */
diff --git a/library/src/scala/math/ScalaNumericConversions.scala b/library/src/scala/math/ScalaNumericConversions.scala
index 03bc7bf0c099..b265bedaa7d2 100644
--- a/library/src/scala/math/ScalaNumericConversions.scala
+++ b/library/src/scala/math/ScalaNumericConversions.scala
@@ -13,7 +13,7 @@
 package scala
 package math
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A slightly more specific conversion trait for classes which
  *  extend ScalaNumber (which excludes value classes.)
diff --git a/library/src/scala/math/package.scala b/library/src/scala/math/package.scala
index 3cf2999336a5..203db407069b 100644
--- a/library/src/scala/math/package.scala
+++ b/library/src/scala/math/package.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** The package object `scala.math` contains methods for performing basic
   * numeric operations such as elementary exponential, logarithmic, root and
diff --git a/library/src/scala/native.scala b/library/src/scala/native.scala
index a55f258ef3b3..bf853d575b6f 100644
--- a/library/src/scala/native.scala
+++ b/library/src/scala/native.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Marker for native methods.
   *
diff --git a/library/src/scala/noinline.scala b/library/src/scala/noinline.scala
index c060e7ebcfe3..d2a770e9c822 100644
--- a/library/src/scala/noinline.scala
+++ b/library/src/scala/noinline.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * An annotation for methods that the optimizer should not inline.
diff --git a/library/src/scala/package.scala b/library/src/scala/package.scala
index e0196636e430..fe9ed612506e 100644
--- a/library/src/scala/package.scala
+++ b/library/src/scala/package.scala
@@ -10,7 +10,7 @@
  * additional information regarding copyright ownership.
  */
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.migration
 
 /**
diff --git a/library/src/scala/ref/PhantomReference.scala b/library/src/scala/ref/PhantomReference.scala
index ab3add3380c5..d2d180da1d5c 100644
--- a/library/src/scala/ref/PhantomReference.scala
+++ b/library/src/scala/ref/PhantomReference.scala
@@ -12,7 +12,7 @@
 
 package scala.ref
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 class PhantomReference[+T <: AnyRef](value: T, queue: ReferenceQueue[T]) extends ReferenceWrapper[T] {
   val underlying: java.lang.ref.PhantomReference[_ <: T] =
diff --git a/library/src/scala/ref/Reference.scala b/library/src/scala/ref/Reference.scala
index c13c9488895b..549d23a162c1 100644
--- a/library/src/scala/ref/Reference.scala
+++ b/library/src/scala/ref/Reference.scala
@@ -12,7 +12,7 @@
 
 package scala.ref
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * @see `java.lang.ref.Reference`
diff --git a/library/src/scala/ref/ReferenceQueue.scala b/library/src/scala/ref/ReferenceQueue.scala
index 1329edb6b6cd..2fb8e646b444 100644
--- a/library/src/scala/ref/ReferenceQueue.scala
+++ b/library/src/scala/ref/ReferenceQueue.scala
@@ -12,7 +12,7 @@
 
 package scala.ref
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 class ReferenceQueue[+T <: AnyRef] {
 
diff --git a/library/src/scala/ref/ReferenceWrapper.scala b/library/src/scala/ref/ReferenceWrapper.scala
index d726a6d6fe28..7877f1816016 100644
--- a/library/src/scala/ref/ReferenceWrapper.scala
+++ b/library/src/scala/ref/ReferenceWrapper.scala
@@ -12,7 +12,7 @@
 
 package scala.ref
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.nowarn
 
 @nowarn("cat=deprecation")
diff --git a/library/src/scala/ref/SoftReference.scala b/library/src/scala/ref/SoftReference.scala
index 0bb94fba0911..dd79863ff03b 100644
--- a/library/src/scala/ref/SoftReference.scala
+++ b/library/src/scala/ref/SoftReference.scala
@@ -12,7 +12,7 @@
 
 package scala.ref
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 class SoftReference[+T <: AnyRef](value : T, queue : ReferenceQueue[T]) extends ReferenceWrapper[T] {
   def this(value : T) = this(value, null)
diff --git a/library/src/scala/ref/WeakReference.scala b/library/src/scala/ref/WeakReference.scala
index ddb2d51d412c..196b79131a04 100644
--- a/library/src/scala/ref/WeakReference.scala
+++ b/library/src/scala/ref/WeakReference.scala
@@ -12,7 +12,7 @@
 
 package scala.ref
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  *  A wrapper class for java.lang.ref.WeakReference
diff --git a/library/src/scala/reflect/ClassManifestDeprecatedApis.scala b/library/src/scala/reflect/ClassManifestDeprecatedApis.scala
index cb8b6b3956e7..17e05050132a 100644
--- a/library/src/scala/reflect/ClassManifestDeprecatedApis.scala
+++ b/library/src/scala/reflect/ClassManifestDeprecatedApis.scala
@@ -13,7 +13,7 @@
 package scala
 package reflect
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.mutable.{ArrayBuilder, ArraySeq}
 import java.lang.{Class => jClass}
 
diff --git a/library/src/scala/reflect/ClassTag.scala b/library/src/scala/reflect/ClassTag.scala
index deb87f5d72cd..25cf56490ff1 100644
--- a/library/src/scala/reflect/ClassTag.scala
+++ b/library/src/scala/reflect/ClassTag.scala
@@ -13,7 +13,7 @@
 package scala
 package reflect
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.lang.{Class => jClass}
 import java.lang.ref.{WeakReference => jWeakReference}
 import scala.annotation.{implicitNotFound, nowarn}
diff --git a/library/src/scala/reflect/Manifest.scala b/library/src/scala/reflect/Manifest.scala
index 4c1b8964ab3f..85b645633a65 100644
--- a/library/src/scala/reflect/Manifest.scala
+++ b/library/src/scala/reflect/Manifest.scala
@@ -13,7 +13,7 @@
 package scala
 package reflect
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.{implicitNotFound, nowarn}
 import scala.collection.mutable.{ArrayBuilder, ArraySeq}
 
diff --git a/library/src/scala/reflect/NameTransformer.scala b/library/src/scala/reflect/NameTransformer.scala
index 54df171f0a5c..15d2af96f15e 100644
--- a/library/src/scala/reflect/NameTransformer.scala
+++ b/library/src/scala/reflect/NameTransformer.scala
@@ -13,7 +13,7 @@
 package scala
 package reflect
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Provides functions to encode and decode Scala symbolic names.
  *  Also provides some constants.
diff --git a/library/src/scala/reflect/NoManifest.scala b/library/src/scala/reflect/NoManifest.scala
index 4a333af8448c..69a2b5e898d3 100644
--- a/library/src/scala/reflect/NoManifest.scala
+++ b/library/src/scala/reflect/NoManifest.scala
@@ -13,7 +13,7 @@
 package scala
 package reflect
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** One of the branches of an [[scala.reflect.OptManifest]].
   */
diff --git a/library/src/scala/reflect/OptManifest.scala b/library/src/scala/reflect/OptManifest.scala
index 892a1fd46e52..fd208ac3a14b 100644
--- a/library/src/scala/reflect/OptManifest.scala
+++ b/library/src/scala/reflect/OptManifest.scala
@@ -13,7 +13,7 @@
 package scala
 package reflect
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A `OptManifest[T]` is an optional [[scala.reflect.Manifest]].
  *
diff --git a/library/src/scala/reflect/macros/internal/macroImpl.scala b/library/src/scala/reflect/macros/internal/macroImpl.scala
index b6f556c7f1b0..0751d0d011ce 100644
--- a/library/src/scala/reflect/macros/internal/macroImpl.scala
+++ b/library/src/scala/reflect/macros/internal/macroImpl.scala
@@ -13,7 +13,7 @@
 package scala.reflect.macros
 package internal
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Links macro definitions with their implementation.
  *  This is necessary to preserve macro def -> macro impl links between compilation runs.
diff --git a/library/src/scala/reflect/package.scala b/library/src/scala/reflect/package.scala
index 92397ab300a1..b342fc352122 100644
--- a/library/src/scala/reflect/package.scala
+++ b/library/src/scala/reflect/package.scala
@@ -15,7 +15,7 @@ package scala
 import java.lang.reflect.{AccessibleObject => jAccessibleObject}
 import scala.annotation.nowarn
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 package object reflect {
 
diff --git a/library/src/scala/runtime/AbstractFunction0.scala b/library/src/scala/runtime/AbstractFunction0.scala
index 96e6122a120e..1b2253a01ca2 100644
--- a/library/src/scala/runtime/AbstractFunction0.scala
+++ b/library/src/scala/runtime/AbstractFunction0.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction0[@specialized(Specializable.Primitives) +R] extends Function0[R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction1.scala b/library/src/scala/runtime/AbstractFunction1.scala
index 170e78c29092..c490b36e2acc 100644
--- a/library/src/scala/runtime/AbstractFunction1.scala
+++ b/library/src/scala/runtime/AbstractFunction1.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction1[@specialized(Specializable.Arg) -T1, @specialized(Specializable.Return) +R] extends Function1[T1, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction10.scala b/library/src/scala/runtime/AbstractFunction10.scala
index 43ce9bda6369..02d0db52ef19 100644
--- a/library/src/scala/runtime/AbstractFunction10.scala
+++ b/library/src/scala/runtime/AbstractFunction10.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction10[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, +R] extends Function10[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction11.scala b/library/src/scala/runtime/AbstractFunction11.scala
index e648f5d7a956..403c0407e8dc 100644
--- a/library/src/scala/runtime/AbstractFunction11.scala
+++ b/library/src/scala/runtime/AbstractFunction11.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction11[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, +R] extends Function11[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction12.scala b/library/src/scala/runtime/AbstractFunction12.scala
index 2b6337199413..d704ba37d683 100644
--- a/library/src/scala/runtime/AbstractFunction12.scala
+++ b/library/src/scala/runtime/AbstractFunction12.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction12[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, +R] extends Function12[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction13.scala b/library/src/scala/runtime/AbstractFunction13.scala
index 49a5784a2def..907507a64762 100644
--- a/library/src/scala/runtime/AbstractFunction13.scala
+++ b/library/src/scala/runtime/AbstractFunction13.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction13[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, +R] extends Function13[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction14.scala b/library/src/scala/runtime/AbstractFunction14.scala
index dcbfd5536cde..7ea6ed451bfb 100644
--- a/library/src/scala/runtime/AbstractFunction14.scala
+++ b/library/src/scala/runtime/AbstractFunction14.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction14[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, +R] extends Function14[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction15.scala b/library/src/scala/runtime/AbstractFunction15.scala
index c610baf0f5b5..c1dd9a63e4f1 100644
--- a/library/src/scala/runtime/AbstractFunction15.scala
+++ b/library/src/scala/runtime/AbstractFunction15.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction15[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, -T15, +R] extends Function15[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction16.scala b/library/src/scala/runtime/AbstractFunction16.scala
index 12e0d368bb08..6830b3048d60 100644
--- a/library/src/scala/runtime/AbstractFunction16.scala
+++ b/library/src/scala/runtime/AbstractFunction16.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction16[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, -T15, -T16, +R] extends Function16[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction17.scala b/library/src/scala/runtime/AbstractFunction17.scala
index e2b48212484d..ab5b6304e546 100644
--- a/library/src/scala/runtime/AbstractFunction17.scala
+++ b/library/src/scala/runtime/AbstractFunction17.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction17[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, -T15, -T16, -T17, +R] extends Function17[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction18.scala b/library/src/scala/runtime/AbstractFunction18.scala
index c3bcfa320a51..a5dea969565c 100644
--- a/library/src/scala/runtime/AbstractFunction18.scala
+++ b/library/src/scala/runtime/AbstractFunction18.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction18[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, -T15, -T16, -T17, -T18, +R] extends Function18[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction19.scala b/library/src/scala/runtime/AbstractFunction19.scala
index bf5b79e107dc..b2723deb1e77 100644
--- a/library/src/scala/runtime/AbstractFunction19.scala
+++ b/library/src/scala/runtime/AbstractFunction19.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction19[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, -T15, -T16, -T17, -T18, -T19, +R] extends Function19[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction2.scala b/library/src/scala/runtime/AbstractFunction2.scala
index acd303c56d68..58d84f76481b 100644
--- a/library/src/scala/runtime/AbstractFunction2.scala
+++ b/library/src/scala/runtime/AbstractFunction2.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction2[@specialized(Specializable.Args) -T1, @specialized(Specializable.Args) -T2, @specialized(Specializable.Return) +R] extends Function2[T1, T2, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction20.scala b/library/src/scala/runtime/AbstractFunction20.scala
index db0900561300..01b65bc527b3 100644
--- a/library/src/scala/runtime/AbstractFunction20.scala
+++ b/library/src/scala/runtime/AbstractFunction20.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction20[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, -T15, -T16, -T17, -T18, -T19, -T20, +R] extends Function20[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction21.scala b/library/src/scala/runtime/AbstractFunction21.scala
index 0a9b07636378..e40ca7daeccc 100644
--- a/library/src/scala/runtime/AbstractFunction21.scala
+++ b/library/src/scala/runtime/AbstractFunction21.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction21[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, -T15, -T16, -T17, -T18, -T19, -T20, -T21, +R] extends Function21[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction22.scala b/library/src/scala/runtime/AbstractFunction22.scala
index e0b36a36a949..a97373349452 100644
--- a/library/src/scala/runtime/AbstractFunction22.scala
+++ b/library/src/scala/runtime/AbstractFunction22.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction22[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, -T10, -T11, -T12, -T13, -T14, -T15, -T16, -T17, -T18, -T19, -T20, -T21, -T22, +R] extends Function22[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction3.scala b/library/src/scala/runtime/AbstractFunction3.scala
index 13f0e223129b..c1a88307bbae 100644
--- a/library/src/scala/runtime/AbstractFunction3.scala
+++ b/library/src/scala/runtime/AbstractFunction3.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction3[-T1, -T2, -T3, +R] extends Function3[T1, T2, T3, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction4.scala b/library/src/scala/runtime/AbstractFunction4.scala
index 7222065daa53..49837a0880d4 100644
--- a/library/src/scala/runtime/AbstractFunction4.scala
+++ b/library/src/scala/runtime/AbstractFunction4.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction4[-T1, -T2, -T3, -T4, +R] extends Function4[T1, T2, T3, T4, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction5.scala b/library/src/scala/runtime/AbstractFunction5.scala
index 753573c8e373..a5e5f307f9a6 100644
--- a/library/src/scala/runtime/AbstractFunction5.scala
+++ b/library/src/scala/runtime/AbstractFunction5.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction5[-T1, -T2, -T3, -T4, -T5, +R] extends Function5[T1, T2, T3, T4, T5, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction6.scala b/library/src/scala/runtime/AbstractFunction6.scala
index 138df23480b9..e6be191fced3 100644
--- a/library/src/scala/runtime/AbstractFunction6.scala
+++ b/library/src/scala/runtime/AbstractFunction6.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction6[-T1, -T2, -T3, -T4, -T5, -T6, +R] extends Function6[T1, T2, T3, T4, T5, T6, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction7.scala b/library/src/scala/runtime/AbstractFunction7.scala
index 994fcec8ac92..51c7fa6d1cfa 100644
--- a/library/src/scala/runtime/AbstractFunction7.scala
+++ b/library/src/scala/runtime/AbstractFunction7.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction7[-T1, -T2, -T3, -T4, -T5, -T6, -T7, +R] extends Function7[T1, T2, T3, T4, T5, T6, T7, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction8.scala b/library/src/scala/runtime/AbstractFunction8.scala
index 97215995504b..07fd8838e9f0 100644
--- a/library/src/scala/runtime/AbstractFunction8.scala
+++ b/library/src/scala/runtime/AbstractFunction8.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction8[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, +R] extends Function8[T1, T2, T3, T4, T5, T6, T7, T8, R] {
 
diff --git a/library/src/scala/runtime/AbstractFunction9.scala b/library/src/scala/runtime/AbstractFunction9.scala
index d4e2d82c2e9c..915eddf41932 100644
--- a/library/src/scala/runtime/AbstractFunction9.scala
+++ b/library/src/scala/runtime/AbstractFunction9.scala
@@ -14,7 +14,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 abstract class AbstractFunction9[-T1, -T2, -T3, -T4, -T5, -T6, -T7, -T8, -T9, +R] extends Function9[T1, T2, T3, T4, T5, T6, T7, T8, T9, R] {
 
diff --git a/library/src/scala/runtime/AbstractPartialFunction.scala b/library/src/scala/runtime/AbstractPartialFunction.scala
index ba28af7797ba..895dac79058b 100644
--- a/library/src/scala/runtime/AbstractPartialFunction.scala
+++ b/library/src/scala/runtime/AbstractPartialFunction.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** `AbstractPartialFunction` reformulates all operations of its supertrait `PartialFunction`
  *  in terms of `isDefinedAt` and `applyOrElse`.
diff --git a/library/src/scala/runtime/ArrayCharSequence.scala b/library/src/scala/runtime/ArrayCharSequence.scala
index 3294252d215a..2ec482915c86 100644
--- a/library/src/scala/runtime/ArrayCharSequence.scala
+++ b/library/src/scala/runtime/ArrayCharSequence.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 // Still need this one since the implicit class ArrayCharSequence only converts
 // a single argument.
diff --git a/library/src/scala/runtime/ClassValueCompat.scala b/library/src/scala/runtime/ClassValueCompat.scala
index 68e39d64db02..24daf6695013 100644
--- a/library/src/scala/runtime/ClassValueCompat.scala
+++ b/library/src/scala/runtime/ClassValueCompat.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.runtime.ClassValueCompat._
 
 private[scala] abstract class ClassValueCompat[T] extends ClassValueInterface[T] { self =>
diff --git a/library/src/scala/runtime/LambdaDeserialize.scala b/library/src/scala/runtime/LambdaDeserialize.scala
index 914ef932c076..202827923592 100644
--- a/library/src/scala/runtime/LambdaDeserialize.scala
+++ b/library/src/scala/runtime/LambdaDeserialize.scala
@@ -18,7 +18,7 @@ import java.util
 import scala.annotation.varargs
 import scala.collection.immutable
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 final class LambdaDeserialize private (lookup: MethodHandles.Lookup, targetMethods: Array[MethodHandle]) {
   private val targetMethodMap: util.HashMap[String, MethodHandle] = new util.HashMap[String, MethodHandle](targetMethods.length)
diff --git a/library/src/scala/runtime/LambdaDeserializer.scala b/library/src/scala/runtime/LambdaDeserializer.scala
index c46cb40fb42c..fa2a038f1f3f 100644
--- a/library/src/scala/runtime/LambdaDeserializer.scala
+++ b/library/src/scala/runtime/LambdaDeserializer.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.lang.invoke._
 
 /**
diff --git a/library/src/scala/runtime/LazyRef.scala b/library/src/scala/runtime/LazyRef.scala
index 21ad57642443..a27f16c927a5 100644
--- a/library/src/scala/runtime/LazyRef.scala
+++ b/library/src/scala/runtime/LazyRef.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Classes used as holders for lazy vals defined in methods. */
 
diff --git a/library/src/scala/runtime/MethodCache.scala b/library/src/scala/runtime/MethodCache.scala
index e0b341500792..9cd59a1cf4d3 100644
--- a/library/src/scala/runtime/MethodCache.scala
+++ b/library/src/scala/runtime/MethodCache.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.lang.reflect.{ Method => JMethod }
 import java.lang.{ Class => JClass }
 
diff --git a/library/src/scala/runtime/ModuleSerializationProxy.scala b/library/src/scala/runtime/ModuleSerializationProxy.scala
index 06e2ce5ae7ee..91f2d7acf1c9 100644
--- a/library/src/scala/runtime/ModuleSerializationProxy.scala
+++ b/library/src/scala/runtime/ModuleSerializationProxy.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.io.Serializable
 import java.security.PrivilegedActionException
 import java.security.PrivilegedExceptionAction
diff --git a/library/src/scala/runtime/NonLocalReturnControl.scala b/library/src/scala/runtime/NonLocalReturnControl.scala
index 76bb6c01c7b9..ad68c0162d48 100644
--- a/library/src/scala/runtime/NonLocalReturnControl.scala
+++ b/library/src/scala/runtime/NonLocalReturnControl.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.util.control.ControlThrowable
 
 // remove Unit specialization when binary compatibility permits
diff --git a/library/src/scala/runtime/Nothing$.scala b/library/src/scala/runtime/Nothing$.scala
index 9cf8acdc3139..b657fddc0383 100644
--- a/library/src/scala/runtime/Nothing$.scala
+++ b/library/src/scala/runtime/Nothing$.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * Dummy class which exist only to satisfy the JVM. It corresponds
diff --git a/library/src/scala/runtime/Null$.scala b/library/src/scala/runtime/Null$.scala
index 30877a03d503..0202462c914a 100644
--- a/library/src/scala/runtime/Null$.scala
+++ b/library/src/scala/runtime/Null$.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * Dummy class which exist only to satisfy the JVM. It corresponds to
diff --git a/library/src/scala/runtime/PStatics.scala b/library/src/scala/runtime/PStatics.scala
index 212f4a59572e..ccab25d3b901 100644
--- a/library/src/scala/runtime/PStatics.scala
+++ b/library/src/scala/runtime/PStatics.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 // things that should be in `Statics`, but can't be yet for bincompat reasons
 // TODO 3.T: move to `Statics`
diff --git a/library/src/scala/runtime/RichBoolean.scala b/library/src/scala/runtime/RichBoolean.scala
index 0ef4f28b1249..9b7745f9859a 100644
--- a/library/src/scala/runtime/RichBoolean.scala
+++ b/library/src/scala/runtime/RichBoolean.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 final class RichBoolean(val self: Boolean) extends AnyVal with OrderedProxy[Boolean] {
   protected def ord: scala.math.Ordering.Boolean.type = scala.math.Ordering.Boolean
diff --git a/library/src/scala/runtime/RichByte.scala b/library/src/scala/runtime/RichByte.scala
index 84576e3e4c1d..58b68b21b31b 100644
--- a/library/src/scala/runtime/RichByte.scala
+++ b/library/src/scala/runtime/RichByte.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 final class RichByte(val self: Byte) extends AnyVal with ScalaWholeNumberProxy[Byte] {
   protected def num: scala.math.Numeric.ByteIsIntegral.type = scala.math.Numeric.ByteIsIntegral
diff --git a/library/src/scala/runtime/RichChar.scala b/library/src/scala/runtime/RichChar.scala
index 982d7fb526b8..8bdda656f987 100644
--- a/library/src/scala/runtime/RichChar.scala
+++ b/library/src/scala/runtime/RichChar.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 final class RichChar(val self: Char) extends AnyVal with IntegralProxy[Char] {
   protected def num: scala.math.Numeric.CharIsIntegral.type = scala.math.Numeric.CharIsIntegral
diff --git a/library/src/scala/runtime/RichDouble.scala b/library/src/scala/runtime/RichDouble.scala
index a32e9bd69401..a1b8bdd065fa 100644
--- a/library/src/scala/runtime/RichDouble.scala
+++ b/library/src/scala/runtime/RichDouble.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 final class RichDouble(val self: Double) extends AnyVal with FractionalProxy[Double] {
   protected def num: Fractional[Double] = scala.math.Numeric.DoubleIsFractional
diff --git a/library/src/scala/runtime/RichFloat.scala b/library/src/scala/runtime/RichFloat.scala
index 67b3e4df7dbc..78cabf5e7402 100644
--- a/library/src/scala/runtime/RichFloat.scala
+++ b/library/src/scala/runtime/RichFloat.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 final class RichFloat(val self: Float) extends AnyVal with FractionalProxy[Float] {
   protected def num: Fractional[Float] = scala.math.Numeric.FloatIsFractional
diff --git a/library/src/scala/runtime/RichInt.scala b/library/src/scala/runtime/RichInt.scala
index d56706887468..10d2d3b9ea0e 100644
--- a/library/src/scala/runtime/RichInt.scala
+++ b/library/src/scala/runtime/RichInt.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.immutable.Range
 
 // Note that this does not implement IntegralProxy[Int] so that it can return
diff --git a/library/src/scala/runtime/RichLong.scala b/library/src/scala/runtime/RichLong.scala
index bf4b6eacc866..2dc7d6ffa2d4 100644
--- a/library/src/scala/runtime/RichLong.scala
+++ b/library/src/scala/runtime/RichLong.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 final class RichLong(val self: Long) extends AnyVal with IntegralProxy[Long] {
   protected def num: scala.math.Numeric.LongIsIntegral.type = scala.math.Numeric.LongIsIntegral
diff --git a/library/src/scala/runtime/RichShort.scala b/library/src/scala/runtime/RichShort.scala
index 536491228f53..31f189380f94 100644
--- a/library/src/scala/runtime/RichShort.scala
+++ b/library/src/scala/runtime/RichShort.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 final class RichShort(val self: Short) extends AnyVal with ScalaWholeNumberProxy[Short] {
   protected def num: scala.math.Numeric.ShortIsIntegral.type = scala.math.Numeric.ShortIsIntegral
diff --git a/library/src/scala/runtime/ScalaNumberProxy.scala b/library/src/scala/runtime/ScalaNumberProxy.scala
index 1110917f2026..cf70558469de 100644
--- a/library/src/scala/runtime/ScalaNumberProxy.scala
+++ b/library/src/scala/runtime/ScalaNumberProxy.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.immutable
 import scala.math.ScalaNumericAnyConversions
 import immutable.NumericRange
diff --git a/library/src/scala/runtime/ScalaRunTime.scala b/library/src/scala/runtime/ScalaRunTime.scala
index b0341731c394..d63056b372c0 100644
--- a/library/src/scala/runtime/ScalaRunTime.scala
+++ b/library/src/scala/runtime/ScalaRunTime.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.{AbstractIterator, AnyConstr, SortedOps, StrictOptimizedIterableOps, StringOps, StringView, View}
 import scala.collection.generic.IsIterable
 import scala.collection.immutable.{ArraySeq, NumericRange}
diff --git a/library/src/scala/runtime/StructuralCallSite.scala b/library/src/scala/runtime/StructuralCallSite.scala
index 38e6a28f65b5..29a0febec3f0 100644
--- a/library/src/scala/runtime/StructuralCallSite.scala
+++ b/library/src/scala/runtime/StructuralCallSite.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.lang.invoke._
 import java.lang.ref.SoftReference
 import java.lang.reflect.Method
diff --git a/library/src/scala/runtime/Tuple2Zipped.scala b/library/src/scala/runtime/Tuple2Zipped.scala
index 951be3598ede..0c4e9efaef48 100644
--- a/library/src/scala/runtime/Tuple2Zipped.scala
+++ b/library/src/scala/runtime/Tuple2Zipped.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.{BuildFrom, IterableOps}
 import scala.language.implicitConversions
 
diff --git a/library/src/scala/runtime/Tuple3Zipped.scala b/library/src/scala/runtime/Tuple3Zipped.scala
index 453f785572d7..cb164512daa5 100644
--- a/library/src/scala/runtime/Tuple3Zipped.scala
+++ b/library/src/scala/runtime/Tuple3Zipped.scala
@@ -13,7 +13,7 @@
 package scala
 package runtime
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.{BuildFrom, IterableOps}
 import scala.language.implicitConversions
 
diff --git a/library/src/scala/runtime/java8/JFunction0$mcB$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcB$sp.scala
index 20ea7a917622..877431126a6d 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcB$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcB$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction0$mcB$sp extends Function0[Any] with Serializable {
   def apply$mcB$sp(): Byte
diff --git a/library/src/scala/runtime/java8/JFunction0$mcC$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcC$sp.scala
index 963e71d8e090..18c99570a154 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcC$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcC$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction0$mcC$sp extends Function0[Any] with Serializable {
   def apply$mcC$sp(): Char
diff --git a/library/src/scala/runtime/java8/JFunction0$mcD$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcD$sp.scala
index 5fe0cc051058..d0d805cfacfe 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction0$mcD$sp extends Function0[Any] with Serializable {
   def apply$mcD$sp(): Double
diff --git a/library/src/scala/runtime/java8/JFunction0$mcF$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcF$sp.scala
index ad1d20451309..78aa698d06af 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcF$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcF$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction0$mcF$sp extends Function0[Any] with Serializable {
   def apply$mcF$sp(): Float
diff --git a/library/src/scala/runtime/java8/JFunction0$mcI$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcI$sp.scala
index d34a43a0d2e6..5cb05a4c1226 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction0$mcI$sp extends Function0[Any] with Serializable {
   def apply$mcI$sp(): Int
diff --git a/library/src/scala/runtime/java8/JFunction0$mcJ$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcJ$sp.scala
index f8ff8b0b4b55..98e2cd15b746 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction0$mcJ$sp extends Function0[Any] with Serializable {
   def apply$mcJ$sp(): Long
diff --git a/library/src/scala/runtime/java8/JFunction0$mcS$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcS$sp.scala
index cca35f9f10d9..2cca873d0565 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcS$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcS$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction0$mcS$sp extends Function0[Any] with Serializable {
   def apply$mcS$sp(): Short
diff --git a/library/src/scala/runtime/java8/JFunction0$mcV$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcV$sp.scala
index 159133ab877e..8ad2c5be6bae 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcV$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcV$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction0$mcV$sp extends Function0[Any] with Serializable {
   def apply$mcV$sp(): Unit
diff --git a/library/src/scala/runtime/java8/JFunction0$mcZ$sp.scala b/library/src/scala/runtime/java8/JFunction0$mcZ$sp.scala
index 0cb9349a2402..987caf2d1844 100644
--- a/library/src/scala/runtime/java8/JFunction0$mcZ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction0$mcZ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction0$mcZ$sp extends Function0[Any] with Serializable {
   def apply$mcZ$sp(): Boolean
diff --git a/library/src/scala/runtime/java8/JFunction1$mcDD$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcDD$sp.scala
index f696ee60463b..d39f70bf2e7e 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcDD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcDD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcDD$sp extends Function1[Any, Any] with Serializable {
   def apply$mcDD$sp(v1: Double): Double
diff --git a/library/src/scala/runtime/java8/JFunction1$mcDF$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcDF$sp.scala
index f781ceda612f..ca19695efffb 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcDF$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcDF$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcDF$sp extends Function1[Any, Any] with Serializable {
   def apply$mcDF$sp(v1: Float): Double
diff --git a/library/src/scala/runtime/java8/JFunction1$mcDI$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcDI$sp.scala
index 89539845abd0..92049ad33c39 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcDI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcDI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcDI$sp extends Function1[Any, Any] with Serializable {
   def apply$mcDI$sp(v1: Int): Double
diff --git a/library/src/scala/runtime/java8/JFunction1$mcDJ$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcDJ$sp.scala
index 6c95ab61c1c9..115be9c367ea 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcDJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcDJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcDJ$sp extends Function1[Any, Any] with Serializable {
   def apply$mcDJ$sp(v1: Long): Double
diff --git a/library/src/scala/runtime/java8/JFunction1$mcFD$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcFD$sp.scala
index 7e94648bfa2e..8fefaf0178cc 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcFD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcFD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcFD$sp extends Function1[Any, Any] with Serializable {
   def apply$mcFD$sp(v1: Double): Float
diff --git a/library/src/scala/runtime/java8/JFunction1$mcFF$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcFF$sp.scala
index f86f38693aca..b5301ab4b903 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcFF$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcFF$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcFF$sp extends Function1[Any, Any] with Serializable {
   def apply$mcFF$sp(v1: Float): Float
diff --git a/library/src/scala/runtime/java8/JFunction1$mcFI$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcFI$sp.scala
index ecadd16bf272..1ae403365eed 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcFI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcFI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcFI$sp extends Function1[Any, Any] with Serializable {
   def apply$mcFI$sp(v1: Int): Float
diff --git a/library/src/scala/runtime/java8/JFunction1$mcFJ$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcFJ$sp.scala
index 6dc0cfa02d8d..698accc7f735 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcFJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcFJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcFJ$sp extends Function1[Any, Any] with Serializable {
   def apply$mcFJ$sp(v1: Long): Float
diff --git a/library/src/scala/runtime/java8/JFunction1$mcID$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcID$sp.scala
index 80de6fa85343..b8ac67b0f974 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcID$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcID$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcID$sp extends Function1[Any, Any] with Serializable {
   def apply$mcID$sp(v1: Double): Int
diff --git a/library/src/scala/runtime/java8/JFunction1$mcIF$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcIF$sp.scala
index fe4967a85332..56009880ffbb 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcIF$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcIF$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcIF$sp extends Function1[Any, Any] with Serializable {
   def apply$mcIF$sp(v1: Float): Int
diff --git a/library/src/scala/runtime/java8/JFunction1$mcII$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcII$sp.scala
index 29a342a2c148..25bfa5dfa29e 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcII$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcII$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcII$sp extends Function1[Any, Any] with Serializable {
   def apply$mcII$sp(v1: Int): Int
diff --git a/library/src/scala/runtime/java8/JFunction1$mcIJ$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcIJ$sp.scala
index 75a5dfe07c64..469a368cb32e 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcIJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcIJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcIJ$sp extends Function1[Any, Any] with Serializable {
   def apply$mcIJ$sp(v1: Long): Int
diff --git a/library/src/scala/runtime/java8/JFunction1$mcJD$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcJD$sp.scala
index 61628b314f0e..b287ca500897 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcJD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcJD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcJD$sp extends Function1[Any, Any] with Serializable {
   def apply$mcJD$sp(v1: Double): Long
diff --git a/library/src/scala/runtime/java8/JFunction1$mcJF$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcJF$sp.scala
index bb7e4d9d9c99..8e37585e1a74 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcJF$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcJF$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcJF$sp extends Function1[Any, Any] with Serializable {
   def apply$mcJF$sp(v1: Float): Long
diff --git a/library/src/scala/runtime/java8/JFunction1$mcJI$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcJI$sp.scala
index 1695c7a6cadb..77e4a81b2d85 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcJI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcJI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcJI$sp extends Function1[Any, Any] with Serializable {
   def apply$mcJI$sp(v1: Int): Long
diff --git a/library/src/scala/runtime/java8/JFunction1$mcJJ$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcJJ$sp.scala
index ca90319e98f1..d3652a3d8a1e 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcJJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcJJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcJJ$sp extends Function1[Any, Any] with Serializable {
   def apply$mcJJ$sp(v1: Long): Long
diff --git a/library/src/scala/runtime/java8/JFunction1$mcVD$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcVD$sp.scala
index d15c99c525b8..a203b7c2e1e7 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcVD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcVD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcVD$sp extends Function1[Any, Any] with Serializable {
   def apply$mcVD$sp(v1: Double): Unit
diff --git a/library/src/scala/runtime/java8/JFunction1$mcVF$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcVF$sp.scala
index 24f4f344b70d..cc8fca94f72f 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcVF$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcVF$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcVF$sp extends Function1[Any, Any] with Serializable {
   def apply$mcVF$sp(v1: Float): Unit
diff --git a/library/src/scala/runtime/java8/JFunction1$mcVI$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcVI$sp.scala
index 4c866d71cd35..057731065c1b 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcVI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcVI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcVI$sp extends Function1[Any, Any] with Serializable {
   def apply$mcVI$sp(v1: Int): Unit
diff --git a/library/src/scala/runtime/java8/JFunction1$mcVJ$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcVJ$sp.scala
index c800a3963944..3e314f4d5feb 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcVJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcVJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcVJ$sp extends Function1[Any, Any] with Serializable {
   def apply$mcVJ$sp(v1: Long): Unit
diff --git a/library/src/scala/runtime/java8/JFunction1$mcZD$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcZD$sp.scala
index 26582517b776..f549e4880ab7 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcZD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcZD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcZD$sp extends Function1[Any, Any] with Serializable {
   def apply$mcZD$sp(v1: Double): Boolean
diff --git a/library/src/scala/runtime/java8/JFunction1$mcZF$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcZF$sp.scala
index 1f5340365dc1..6cf524f364d3 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcZF$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcZF$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcZF$sp extends Function1[Any, Any] with Serializable {
   def apply$mcZF$sp(v1: Float): Boolean
diff --git a/library/src/scala/runtime/java8/JFunction1$mcZI$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcZI$sp.scala
index 0f0136ae24e3..5b515524c009 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcZI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcZI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcZI$sp extends Function1[Any, Any] with Serializable {
   def apply$mcZI$sp(v1: Int): Boolean
diff --git a/library/src/scala/runtime/java8/JFunction1$mcZJ$sp.scala b/library/src/scala/runtime/java8/JFunction1$mcZJ$sp.scala
index 836eba33772d..5b7815c7e89e 100644
--- a/library/src/scala/runtime/java8/JFunction1$mcZJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction1$mcZJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction1$mcZJ$sp extends Function1[Any, Any] with Serializable {
   def apply$mcZJ$sp(v1: Long): Boolean
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDDD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDDD$sp.scala
index f69c836b205f..31c5c9edcecc 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDDD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDDD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcDDD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDDD$sp(v1: Double, v2: Double): Double
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDDI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDDI$sp.scala
index 75be774f081e..2cf9d4b6e80a 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDDI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDDI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcDDI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDDI$sp(v1: Double, v2: Int): Double
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDDJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDDJ$sp.scala
index 77f063087ef3..127d73aba5e8 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDDJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDDJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcDDJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDDJ$sp(v1: Double, v2: Long): Double
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDID$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDID$sp.scala
index 8c6ad32168e2..a70ccb6c3ed4 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDID$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDID$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcDID$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDID$sp(v1: Int, v2: Double): Double
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDII$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDII$sp.scala
index da541e9a4408..2de6cddd8bec 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDII$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDII$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcDII$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDII$sp(v1: Int, v2: Int): Double
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDIJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDIJ$sp.scala
index 0e9c503013ea..7bda4d00b974 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDIJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDIJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcDIJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDIJ$sp(v1: Int, v2: Long): Double
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDJD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDJD$sp.scala
index cfccc265c108..f0c078e8334e 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDJD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDJD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcDJD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDJD$sp(v1: Long, v2: Double): Double
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDJI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDJI$sp.scala
index 625bb29f9841..c62fa042e1c7 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDJI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDJI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcDJI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDJI$sp(v1: Long, v2: Int): Double
diff --git a/library/src/scala/runtime/java8/JFunction2$mcDJJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcDJJ$sp.scala
index 865f56a7de60..c980a47f653c 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcDJJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcDJJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcDJJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcDJJ$sp(v1: Long, v2: Long): Double
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFDD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFDD$sp.scala
index 6939b57ed114..c3a0f40a5d1e 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFDD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFDD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcFDD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFDD$sp(v1: Double, v2: Double): Float
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFDI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFDI$sp.scala
index 00dab2f01741..dfdc4b74dfd9 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFDI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFDI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcFDI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFDI$sp(v1: Double, v2: Int): Float
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFDJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFDJ$sp.scala
index 5767c6f62824..0e5caaa89e8b 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFDJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFDJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcFDJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFDJ$sp(v1: Double, v2: Long): Float
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFID$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFID$sp.scala
index 4b5f39f537ae..2808ce6bb3db 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFID$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFID$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcFID$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFID$sp(v1: Int, v2: Double): Float
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFII$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFII$sp.scala
index d6c99f2d2ac5..d233dfd4b89b 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFII$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFII$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcFII$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFII$sp(v1: Int, v2: Int): Float
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFIJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFIJ$sp.scala
index e71d90aede81..ef66633ace2c 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFIJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFIJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcFIJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFIJ$sp(v1: Int, v2: Long): Float
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFJD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFJD$sp.scala
index 89ac313c3f0f..8147ea7988ee 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFJD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFJD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcFJD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFJD$sp(v1: Long, v2: Double): Float
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFJI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFJI$sp.scala
index 8a186380c8f1..971565be082d 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFJI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFJI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcFJI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFJI$sp(v1: Long, v2: Int): Float
diff --git a/library/src/scala/runtime/java8/JFunction2$mcFJJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcFJJ$sp.scala
index aa168fa28735..f7f92df07f78 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcFJJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcFJJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcFJJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcFJJ$sp(v1: Long, v2: Long): Float
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIDD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIDD$sp.scala
index d373a3c8f433..7fea7b0dec2a 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIDD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIDD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcIDD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIDD$sp(v1: Double, v2: Double): Int
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIDI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIDI$sp.scala
index 11a32cc23dc7..3bf98ac2fd4e 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIDI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIDI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcIDI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIDI$sp(v1: Double, v2: Int): Int
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIDJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIDJ$sp.scala
index afd489ebd762..bcd420495b5b 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIDJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIDJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcIDJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIDJ$sp(v1: Double, v2: Long): Int
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIID$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIID$sp.scala
index c5e7b2aa0607..5ef47488be8e 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIID$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIID$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcIID$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIID$sp(v1: Int, v2: Double): Int
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIII$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIII$sp.scala
index 8ccd335e41ca..7acabedd4477 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIII$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIII$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcIII$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIII$sp(v1: Int, v2: Int): Int
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIIJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIIJ$sp.scala
index 463e89462c2b..dc93e1b9aa39 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIIJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIIJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcIIJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIIJ$sp(v1: Int, v2: Long): Int
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIJD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIJD$sp.scala
index d2bfc1dcf375..f8cd79bacd4c 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIJD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIJD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcIJD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIJD$sp(v1: Long, v2: Double): Int
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIJI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIJI$sp.scala
index ddb036b40bab..b138f5e272c4 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIJI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIJI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcIJI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIJI$sp(v1: Long, v2: Int): Int
diff --git a/library/src/scala/runtime/java8/JFunction2$mcIJJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcIJJ$sp.scala
index d8ea3c2bc2ee..423b3700bd80 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcIJJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcIJJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcIJJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcIJJ$sp(v1: Long, v2: Long): Int
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJDD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJDD$sp.scala
index 5c937c34ed03..37858178dae6 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJDD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJDD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcJDD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJDD$sp(v1: Double, v2: Double): Long
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJDI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJDI$sp.scala
index 7ef1f7faa099..614c7ca03867 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJDI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJDI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcJDI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJDI$sp(v1: Double, v2: Int): Long
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJDJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJDJ$sp.scala
index 9fc8236bd60a..b9d5a48216d2 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJDJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJDJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcJDJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJDJ$sp(v1: Double, v2: Long): Long
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJID$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJID$sp.scala
index 5661c3946fcb..c6b0b3c3325b 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJID$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJID$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcJID$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJID$sp(v1: Int, v2: Double): Long
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJII$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJII$sp.scala
index b8468b3c9a18..235d7b96dbf0 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJII$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJII$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcJII$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJII$sp(v1: Int, v2: Int): Long
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJIJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJIJ$sp.scala
index 4e6b6ee3c93e..51de2d927b4f 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJIJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJIJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcJIJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJIJ$sp(v1: Int, v2: Long): Long
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJJD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJJD$sp.scala
index c3ce2d01d4c7..d37fa65164cc 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJJD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJJD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcJJD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJJD$sp(v1: Long, v2: Double): Long
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJJI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJJI$sp.scala
index 4985db6499c1..67a4e98a26c3 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJJI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJJI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcJJI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJJI$sp(v1: Long, v2: Int): Long
diff --git a/library/src/scala/runtime/java8/JFunction2$mcJJJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcJJJ$sp.scala
index ba1655409228..9996290a54da 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcJJJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcJJJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcJJJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcJJJ$sp(v1: Long, v2: Long): Long
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVDD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVDD$sp.scala
index 0d4fdfdb0339..bad81ad774de 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVDD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVDD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcVDD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVDD$sp(v1: Double, v2: Double): Unit
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVDI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVDI$sp.scala
index 80b867418f86..7ea5dea1aa80 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVDI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVDI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcVDI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVDI$sp(v1: Double, v2: Int): Unit
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVDJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVDJ$sp.scala
index 835e5ddbd203..c8709cf9cd8f 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVDJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVDJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcVDJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVDJ$sp(v1: Double, v2: Long): Unit
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVID$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVID$sp.scala
index 7d856f91dbb1..56bbc882c7dc 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVID$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVID$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcVID$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVID$sp(v1: Int, v2: Double): Unit
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVII$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVII$sp.scala
index 091fac78ff9e..9f4669f086d8 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVII$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVII$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcVII$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVII$sp(v1: Int, v2: Int): Unit
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVIJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVIJ$sp.scala
index 106ac76f4722..3b426c309f07 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVIJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVIJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcVIJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVIJ$sp(v1: Int, v2: Long): Unit
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVJD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVJD$sp.scala
index 8323c7c17863..e732f7e97d90 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVJD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVJD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcVJD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVJD$sp(v1: Long, v2: Double): Unit
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVJI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVJI$sp.scala
index d429d016bf4c..13452f0926b3 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVJI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVJI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcVJI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVJI$sp(v1: Long, v2: Int): Unit
diff --git a/library/src/scala/runtime/java8/JFunction2$mcVJJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcVJJ$sp.scala
index fcf68648c7a0..8eeaa6c99454 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcVJJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcVJJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcVJJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcVJJ$sp(v1: Long, v2: Long): Unit
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZDD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZDD$sp.scala
index d7fcfccface1..f7a690f44339 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZDD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZDD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcZDD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZDD$sp(v1: Double, v2: Double): Boolean
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZDI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZDI$sp.scala
index 509aa05621c9..fa78cf691ae5 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZDI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZDI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcZDI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZDI$sp(v1: Double, v2: Int): Boolean
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZDJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZDJ$sp.scala
index 59fbdcc6b841..541078d6b5a5 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZDJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZDJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcZDJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZDJ$sp(v1: Double, v2: Long): Boolean
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZID$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZID$sp.scala
index b18d9e830141..79e57edc4d48 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZID$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZID$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcZID$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZID$sp(v1: Int, v2: Double): Boolean
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZII$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZII$sp.scala
index 769245ee2239..fde9f4e61c79 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZII$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZII$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcZII$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZII$sp(v1: Int, v2: Int): Boolean
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZIJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZIJ$sp.scala
index eaa0d979755d..de909f4bb048 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZIJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZIJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcZIJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZIJ$sp(v1: Int, v2: Long): Boolean
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZJD$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZJD$sp.scala
index a97ce4c7c596..ebbdde246224 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZJD$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZJD$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcZJD$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZJD$sp(v1: Long, v2: Double): Boolean
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZJI$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZJI$sp.scala
index d8ebd813e99f..164d437b429f 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZJI$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZJI$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcZJI$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZJI$sp(v1: Long, v2: Int): Boolean
diff --git a/library/src/scala/runtime/java8/JFunction2$mcZJJ$sp.scala b/library/src/scala/runtime/java8/JFunction2$mcZJJ$sp.scala
index 86f960c8566d..edae96a9ef31 100644
--- a/library/src/scala/runtime/java8/JFunction2$mcZJJ$sp.scala
+++ b/library/src/scala/runtime/java8/JFunction2$mcZJJ$sp.scala
@@ -12,7 +12,7 @@
 
 package scala.runtime.java8
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 @FunctionalInterface trait JFunction2$mcZJJ$sp extends Function2[Any, Any, Any] with Serializable {
   def apply$mcZJJ$sp(v1: Long, v2: Long): Boolean
diff --git a/library/src/scala/specialized.scala b/library/src/scala/specialized.scala
index 6b79cb4a1ee1..f673fb6a3bb9 100644
--- a/library/src/scala/specialized.scala
+++ b/library/src/scala/specialized.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 import Specializable._
 
diff --git a/library/src/scala/sys/BooleanProp.scala b/library/src/scala/sys/BooleanProp.scala
index 9917241bb322..723623d72769 100644
--- a/library/src/scala/sys/BooleanProp.scala
+++ b/library/src/scala/sys/BooleanProp.scala
@@ -13,7 +13,7 @@
 package scala
 package sys
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.language.implicitConversions
 
 /** A few additional conveniences for Boolean properties.
diff --git a/library/src/scala/sys/Prop.scala b/library/src/scala/sys/Prop.scala
index fd0edf55b4bc..0a7c8b678299 100644
--- a/library/src/scala/sys/Prop.scala
+++ b/library/src/scala/sys/Prop.scala
@@ -13,7 +13,7 @@
 package scala
 package sys
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A lightweight interface wrapping a property contained in some
  *  unspecified map.  Generally it'll be the system properties but this
diff --git a/library/src/scala/sys/PropImpl.scala b/library/src/scala/sys/PropImpl.scala
index d8d72954f1a4..37f0bac5c02a 100644
--- a/library/src/scala/sys/PropImpl.scala
+++ b/library/src/scala/sys/PropImpl.scala
@@ -13,7 +13,7 @@
 package scala
 package sys
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.mutable
 
 /** The internal implementation of scala.sys.Prop.
diff --git a/library/src/scala/sys/ShutdownHookThread.scala b/library/src/scala/sys/ShutdownHookThread.scala
index 1e526f347a41..d9499d5e1ad1 100644
--- a/library/src/scala/sys/ShutdownHookThread.scala
+++ b/library/src/scala/sys/ShutdownHookThread.scala
@@ -13,7 +13,7 @@
 package scala
 package sys
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A minimal Thread wrapper to enhance shutdown hooks.  It knows
  *  how to unregister itself.
diff --git a/library/src/scala/sys/SystemProperties.scala b/library/src/scala/sys/SystemProperties.scala
index 88932e86a810..d1a5326e66f7 100644
--- a/library/src/scala/sys/SystemProperties.scala
+++ b/library/src/scala/sys/SystemProperties.scala
@@ -13,7 +13,7 @@
 package scala
 package sys
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.{mutable, Iterator}
 import scala.jdk.CollectionConverters._
 import java.security.AccessControlException
diff --git a/library/src/scala/sys/package.scala b/library/src/scala/sys/package.scala
index cad7f6784675..3329e53e0d0b 100644
--- a/library/src/scala/sys/package.scala
+++ b/library/src/scala/sys/package.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.immutable.ArraySeq
 import scala.jdk.CollectionConverters._
 
diff --git a/library/src/scala/sys/process/BasicIO.scala b/library/src/scala/sys/process/BasicIO.scala
index 276d7901c937..57710609451d 100644
--- a/library/src/scala/sys/process/BasicIO.scala
+++ b/library/src/scala/sys/process/BasicIO.scala
@@ -14,7 +14,7 @@ package scala
 package sys
 package process
 
-import scala.language.`2`
+import scala.language.`2.13`
 import processInternal._
 import java.io.{ BufferedReader, InputStreamReader, FilterInputStream, FilterOutputStream }
 import java.util.concurrent.LinkedBlockingQueue
diff --git a/library/src/scala/sys/process/Parser.scala b/library/src/scala/sys/process/Parser.scala
index 9f67feba3f87..a1dbb7ec6320 100644
--- a/library/src/scala/sys/process/Parser.scala
+++ b/library/src/scala/sys/process/Parser.scala
@@ -12,7 +12,7 @@
 
 package scala.sys.process
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.tailrec
 
 /** A simple enough command line parser using shell quote conventions.
diff --git a/library/src/scala/sys/process/Process.scala b/library/src/scala/sys/process/Process.scala
index 9393faeebc6f..be9a3490ebe4 100644
--- a/library/src/scala/sys/process/Process.scala
+++ b/library/src/scala/sys/process/Process.scala
@@ -14,7 +14,7 @@ package scala
 package sys
 package process
 
-import scala.language.`2`
+import scala.language.`2.13`
 import processInternal._
 import ProcessBuilder._
 import scala.language.implicitConversions
diff --git a/library/src/scala/sys/process/ProcessBuilder.scala b/library/src/scala/sys/process/ProcessBuilder.scala
index c7f9c9175d61..d4eb2b054375 100644
--- a/library/src/scala/sys/process/ProcessBuilder.scala
+++ b/library/src/scala/sys/process/ProcessBuilder.scala
@@ -14,7 +14,7 @@ package scala
 package sys
 package process
 
-import scala.language.`2`
+import scala.language.`2.13`
 import processInternal._
 import ProcessBuilder.{Sink, Source}
 
diff --git a/library/src/scala/sys/process/ProcessBuilderImpl.scala b/library/src/scala/sys/process/ProcessBuilderImpl.scala
index f718bfafdb7f..41b284dbd0bb 100644
--- a/library/src/scala/sys/process/ProcessBuilderImpl.scala
+++ b/library/src/scala/sys/process/ProcessBuilderImpl.scala
@@ -14,7 +14,7 @@ package scala
 package sys
 package process
 
-import scala.language.`2`
+import scala.language.`2.13`
 import processInternal._
 import Process._
 import BasicIO.{LazilyListed, Streamed, Uncloseable}
diff --git a/library/src/scala/sys/process/ProcessIO.scala b/library/src/scala/sys/process/ProcessIO.scala
index a649b279f594..f9f793732218 100644
--- a/library/src/scala/sys/process/ProcessIO.scala
+++ b/library/src/scala/sys/process/ProcessIO.scala
@@ -14,7 +14,7 @@ package scala
 package sys
 package process
 
-import scala.language.`2`
+import scala.language.`2.13`
 import processInternal._
 
 /** This class is used to control the I/O of every
diff --git a/library/src/scala/sys/process/ProcessImpl.scala b/library/src/scala/sys/process/ProcessImpl.scala
index e1eb8b9efe50..7e5a742d9b5b 100644
--- a/library/src/scala/sys/process/ProcessImpl.scala
+++ b/library/src/scala/sys/process/ProcessImpl.scala
@@ -12,7 +12,7 @@
 
 package scala.sys.process
 
-import scala.language.`2`
+import scala.language.`2.13`
 import processInternal._
 
 import java.util.concurrent.LinkedBlockingQueue
diff --git a/library/src/scala/sys/process/ProcessLogger.scala b/library/src/scala/sys/process/ProcessLogger.scala
index 6abea86fa85f..621451cb619c 100644
--- a/library/src/scala/sys/process/ProcessLogger.scala
+++ b/library/src/scala/sys/process/ProcessLogger.scala
@@ -14,7 +14,7 @@ package scala
 package sys
 package process
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.io._
 
 /** Encapsulates the output and error streams of a running process. This is used
diff --git a/library/src/scala/sys/process/package.scala b/library/src/scala/sys/process/package.scala
index 38f98c609bbe..bf0e534e2284 100644
--- a/library/src/scala/sys/process/package.scala
+++ b/library/src/scala/sys/process/package.scala
@@ -17,7 +17,7 @@
 package scala.sys
 package process
 
-import scala.language.`2`
+import scala.language.`2.13`
 
   /** This package handles the execution of external processes.  The contents of
     * this package can be divided in three groups, according to their
diff --git a/library/src/scala/throws.scala b/library/src/scala/throws.scala
index f4febf06b009..898c745a4804 100644
--- a/library/src/scala/throws.scala
+++ b/library/src/scala/throws.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * Annotation for specifying the exceptions thrown by a method.
diff --git a/library/src/scala/transient.scala b/library/src/scala/transient.scala
index 74297b1dace0..3ca34fba9f69 100644
--- a/library/src/scala/transient.scala
+++ b/library/src/scala/transient.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.meta._
 
 @field
diff --git a/library/src/scala/typeConstraints.scala b/library/src/scala/typeConstraints.scala
index 6b1595eb87e8..3c7e15de67ca 100644
--- a/library/src/scala/typeConstraints.scala
+++ b/library/src/scala/typeConstraints.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.implicitNotFound
 
 /** An instance of `A <:< B` witnesses that `A` is a subtype of `B`.
diff --git a/library/src/scala/unchecked.scala b/library/src/scala/unchecked.scala
index cad9d594b76a..1990bc23b819 100644
--- a/library/src/scala/unchecked.scala
+++ b/library/src/scala/unchecked.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** An annotation to designate that the annotated entity
  *  should not be considered for additional compiler checks.
diff --git a/library/src/scala/util/ChainingOps.scala b/library/src/scala/util/ChainingOps.scala
index c0e743bb0baf..41526bffbb46 100644
--- a/library/src/scala/util/ChainingOps.scala
+++ b/library/src/scala/util/ChainingOps.scala
@@ -13,7 +13,7 @@
 package scala
 package util
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.language.implicitConversions
 
 trait ChainingSyntax {
diff --git a/library/src/scala/util/DynamicVariable.scala b/library/src/scala/util/DynamicVariable.scala
index 330ce79e858d..1f05de8ab5ca 100644
--- a/library/src/scala/util/DynamicVariable.scala
+++ b/library/src/scala/util/DynamicVariable.scala
@@ -13,7 +13,7 @@
 package scala
 package util
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.lang.InheritableThreadLocal
 
 /** `DynamicVariables` provide a binding mechanism where the current
diff --git a/library/src/scala/util/Either.scala b/library/src/scala/util/Either.scala
index dd658cb11d3a..7caa89189301 100644
--- a/library/src/scala/util/Either.scala
+++ b/library/src/scala/util/Either.scala
@@ -13,7 +13,7 @@
 package scala
 package util
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Represents a value of one of two possible types (a disjoint union).
  *  An instance of `Either` is an instance of either [[scala.util.Left]] or [[scala.util.Right]].
diff --git a/library/src/scala/util/Properties.scala b/library/src/scala/util/Properties.scala
index 2a0ea93af850..364a66caa1e8 100644
--- a/library/src/scala/util/Properties.scala
+++ b/library/src/scala/util/Properties.scala
@@ -13,7 +13,7 @@
 package scala
 package util
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.io.{IOException, PrintWriter}
 import java.util.jar.Attributes.{Name => AttributeName}
 import scala.annotation.tailrec
diff --git a/library/src/scala/util/Random.scala b/library/src/scala/util/Random.scala
index 058a8b69f567..e79bd2f5dfcc 100644
--- a/library/src/scala/util/Random.scala
+++ b/library/src/scala/util/Random.scala
@@ -13,7 +13,7 @@
 package scala
 package util
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.{migration, tailrec}
 import scala.collection.mutable.ArrayBuffer
 import scala.collection.BuildFrom
diff --git a/library/src/scala/util/Sorting.scala b/library/src/scala/util/Sorting.scala
index 8fc14337f657..b1083664b336 100644
--- a/library/src/scala/util/Sorting.scala
+++ b/library/src/scala/util/Sorting.scala
@@ -13,7 +13,7 @@
 package scala
 package util
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.reflect.ClassTag
 import scala.math.Ordering
 
diff --git a/library/src/scala/util/Try.scala b/library/src/scala/util/Try.scala
index ba786d5d9de3..a5686fab01f5 100644
--- a/library/src/scala/util/Try.scala
+++ b/library/src/scala/util/Try.scala
@@ -13,7 +13,7 @@
 package scala
 package util
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.runtime.Statics
 import scala.util.control.NonFatal
 
diff --git a/library/src/scala/util/Using.scala b/library/src/scala/util/Using.scala
index 65ad66ee79f8..90ec6dc71d40 100644
--- a/library/src/scala/util/Using.scala
+++ b/library/src/scala/util/Using.scala
@@ -12,7 +12,7 @@
 
 package scala.util
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.util.control.{ControlThrowable, NonFatal}
 
 /** A utility for performing automatic resource management. It can be used to perform an
diff --git a/library/src/scala/util/control/Breaks.scala b/library/src/scala/util/control/Breaks.scala
index 5f95aa025721..601447e5d099 100644
--- a/library/src/scala/util/control/Breaks.scala
+++ b/library/src/scala/util/control/Breaks.scala
@@ -12,7 +12,7 @@
 
 package scala.util.control
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** Provides the `break` control abstraction.
  *
diff --git a/library/src/scala/util/control/ControlThrowable.scala b/library/src/scala/util/control/ControlThrowable.scala
index 43709925a0d8..b3a3bf1006e2 100644
--- a/library/src/scala/util/control/ControlThrowable.scala
+++ b/library/src/scala/util/control/ControlThrowable.scala
@@ -12,7 +12,7 @@
 
 package scala.util.control
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A parent class for throwable objects intended for flow control.
  *
diff --git a/library/src/scala/util/control/Exception.scala b/library/src/scala/util/control/Exception.scala
index aaab3881e9cb..76861c23e853 100644
--- a/library/src/scala/util/control/Exception.scala
+++ b/library/src/scala/util/control/Exception.scala
@@ -14,7 +14,7 @@ package scala
 package util
 package control
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.tailrec
 import scala.reflect.{ClassTag, classTag}
 import scala.language.implicitConversions
diff --git a/library/src/scala/util/control/NoStackTrace.scala b/library/src/scala/util/control/NoStackTrace.scala
index adfd3cc63aa6..59d53e02780c 100644
--- a/library/src/scala/util/control/NoStackTrace.scala
+++ b/library/src/scala/util/control/NoStackTrace.scala
@@ -13,7 +13,7 @@
 package scala
 package util.control
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A trait for exceptions which, for efficiency reasons, do not
  *  fill in the stack trace.  Stack trace suppression can be disabled
diff --git a/library/src/scala/util/control/NonFatal.scala b/library/src/scala/util/control/NonFatal.scala
index 12620d25d489..9c56eef7cb02 100644
--- a/library/src/scala/util/control/NonFatal.scala
+++ b/library/src/scala/util/control/NonFatal.scala
@@ -13,7 +13,7 @@
 package scala
 package util.control
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /**
  * Extractor of non-fatal Throwables. Will not match fatal errors like `VirtualMachineError`
diff --git a/library/src/scala/util/control/TailCalls.scala b/library/src/scala/util/control/TailCalls.scala
index 2716c54ed168..76f0e2dd8e33 100644
--- a/library/src/scala/util/control/TailCalls.scala
+++ b/library/src/scala/util/control/TailCalls.scala
@@ -12,7 +12,7 @@
 
 package scala.util.control
 
-import scala.language.`2`
+import scala.language.`2.13`
 import annotation.tailrec
 
 /** Methods exported by this object implement tail calls via trampolining.
diff --git a/library/src/scala/util/hashing/ByteswapHashing.scala b/library/src/scala/util/hashing/ByteswapHashing.scala
index 4a6964349c5d..699f385d3366 100644
--- a/library/src/scala/util/hashing/ByteswapHashing.scala
+++ b/library/src/scala/util/hashing/ByteswapHashing.scala
@@ -13,7 +13,7 @@
 package scala
 package util.hashing
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 /** A fast multiplicative hash by Phil Bagwell.
  */
diff --git a/library/src/scala/util/hashing/Hashing.scala b/library/src/scala/util/hashing/Hashing.scala
index c326c6df55e6..62080f0ffb8f 100644
--- a/library/src/scala/util/hashing/Hashing.scala
+++ b/library/src/scala/util/hashing/Hashing.scala
@@ -13,7 +13,7 @@
 package scala
 package util.hashing
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.implicitNotFound
 
 /** `Hashing` is a trait whose instances each represent a strategy for hashing
diff --git a/library/src/scala/util/hashing/MurmurHash3.scala b/library/src/scala/util/hashing/MurmurHash3.scala
index 68e3dc977680..e828ff771819 100644
--- a/library/src/scala/util/hashing/MurmurHash3.scala
+++ b/library/src/scala/util/hashing/MurmurHash3.scala
@@ -13,7 +13,7 @@
 package scala
 package util.hashing
 
-import scala.language.`2`
+import scala.language.`2.13`
 import java.lang.Integer.{ rotateLeft => rotl }
 
 private[hashing] class MurmurHash3 {
diff --git a/library/src/scala/util/hashing/package.scala b/library/src/scala/util/hashing/package.scala
index 82f8f8e98069..1524903bd992 100644
--- a/library/src/scala/util/hashing/package.scala
+++ b/library/src/scala/util/hashing/package.scala
@@ -13,7 +13,7 @@
 package scala
 package util
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 package object hashing {
 
diff --git a/library/src/scala/util/matching/Regex.scala b/library/src/scala/util/matching/Regex.scala
index a9c5c47cef76..8e86234ebdb8 100644
--- a/library/src/scala/util/matching/Regex.scala
+++ b/library/src/scala/util/matching/Regex.scala
@@ -26,7 +26,7 @@
  */
 package scala.util.matching
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.collection.AbstractIterator
 import java.util.regex.{ Pattern, Matcher }
 
diff --git a/library/src/scala/util/package.scala b/library/src/scala/util/package.scala
index 23ec0131e18a..7d1fe27bdde8 100644
--- a/library/src/scala/util/package.scala
+++ b/library/src/scala/util/package.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 
 package object util {
   /**
diff --git a/library/src/scala/volatile.scala b/library/src/scala/volatile.scala
index 9d16a3d3bcbe..75b615ee6c7d 100644
--- a/library/src/scala/volatile.scala
+++ b/library/src/scala/volatile.scala
@@ -12,7 +12,7 @@
 
 package scala
 
-import scala.language.`2`
+import scala.language.`2.13`
 import scala.annotation.meta._
 
 @field