Add an argument to handleFunctionBodySkipped.

pkg/front_end/lib/src/fasta/parser/parser.dart

Index: pkg/front_end/lib/src/fasta/parser/parser.dart
diff --git a/pkg/front_end/lib/src/fasta/parser/parser.dart b/pkg/front_end/lib/src/fasta/parser/parser.dart
index 4b24296358c7d77db910c1721c10d482b71aec53..3388c86c2a7f1d6e98dc9e1273acabd136cb7c07 100644
--- a/pkg/front_end/lib/src/fasta/parser/parser.dart
+++ b/pkg/front_end/lib/src/fasta/parser/parser.dart
@@ -2007,14 +2007,16 @@ class Parser {
       if (identical(value, '=>')) {
         token = parseExpression(token.next);
         expectSemicolon(token);
+        listener.handleFunctionBodySkipped(token, true);
       } else if (identical(value, '=')) {
         reportRecoverableError(token, ErrorKind.ExpectedBody);
         token = parseExpression(token.next);
         expectSemicolon(token);
+        listener.handleFunctionBodySkipped(token, true);
       } else {
         token = skipBlock(token);
+        listener.handleFunctionBodySkipped(token, false);
       }
-      listener.handleFunctionBodySkipped(token);
     }
     return token;
   }