Update parser and scanner.

pkg/dart_parser/lib/src/class_member_parser.dart

Index: pkg/dart_parser/lib/src/class_member_parser.dart
diff --git a/pkg/dart_parser/lib/src/class_member_parser.dart b/pkg/dart_parser/lib/src/class_member_parser.dart
index 792468bf91d832eed194f354925d423589a883b9..13e1fe4d9a821909540179420776fa41a415264d 100644
--- a/pkg/dart_parser/lib/src/class_member_parser.dart
+++ b/pkg/dart_parser/lib/src/class_member_parser.dart
@@ -17,10 +17,8 @@ import 'parser.dart' show
 /// their bodies).
 class ClassMemberParser extends Parser {
   ClassMemberParser(Listener listener,
-      {bool asyncAwaitKeywordsEnabled: false,
-       bool enableGenericMethodSyntax: false})
-      : super(listener, asyncAwaitKeywordsEnabled: asyncAwaitKeywordsEnabled,
-          enableGenericMethodSyntax: enableGenericMethodSyntax);
+      {bool asyncAwaitKeywordsEnabled: false})
+      : super(listener, asyncAwaitKeywordsEnabled: asyncAwaitKeywordsEnabled);
 
   Token parseExpression(Token token) => skipExpression(token);