x/tools: add //go:fix inline

This CL adds //go:fix inline annotations to some deprecated
functions that may be inlined.

Updates golang/go#32816

Change-Id: I2e8e82bee054721f266506af24ea39cf2e8b7983
Reviewed-on: https://go-review.googlesource.com/c/tools/+/649056
LUCI-TryBot-Result: Go LUCI <[email protected]>
Commit-Queue: Alan Donovan <[email protected]>
Auto-Submit: Alan Donovan <[email protected]>
Reviewed-by: Jonathan Amsterdam <[email protected]>

Author: adonovan

go/ast/astutil/util.go

@@ -8,4 +8,6 @@ import "go/ast"
 
 // Unparen returns e with any enclosing parentheses stripped.
 // Deprecated: use [ast.Unparen].
+//
+//go:fix inline
 func Unparen(e ast.Expr) ast.Expr { return ast.Unparen(e) }

go/packages/packages.go

@@ -141,6 +141,8 @@ const (
 	LoadAllSyntax = LoadSyntax | NeedDeps
 
 	// Deprecated: NeedExportsFile is a historical misspelling of NeedExportFile.
+	//
+	//go:fix inline
 	NeedExportsFile = NeedExportFile
 )