Test macro invocations containing $

Author: ninevra

corpus/macros.txt

@@ -51,6 +51,10 @@ a!('\u{0}'..='\u{2}');
 a!('lifetime)
 default!(a);
 union!(a);
+a!($);
+a!($());
+a!($ a $);
+a!(${$([ a ])});
 
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@@ -101,7 +105,23 @@ union!(a);
     (macro_invocation
       (identifier)
       (token_tree
-        (identifier)))))
+        (identifier))))
+  (expression_statement
+    (macro_invocation
+      (identifier)
+      (token_tree)))
+  (expression_statement
+    (macro_invocation
+      (identifier)
+      (token_tree (token_tree))))
+  (expression_statement
+    (macro_invocation
+      (identifier)
+      (token_tree (identifier))))
+  (expression_statement
+    (macro_invocation
+      (identifier)
+      (token_tree (token_tree (token_tree (token_tree (identifier))))))))
 
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 Macro invocation with comments