add support for native methods in class

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

Index: pkg/front_end/lib/src/fasta/parser/listener.dart
diff --git a/pkg/front_end/lib/src/fasta/parser/listener.dart b/pkg/front_end/lib/src/fasta/parser/listener.dart
index ed125679f62da83f9674fea6f676755c2725356f..ed14555ddbd1b5f81cb5be36cf9a09e66355af43 100644
--- a/pkg/front_end/lib/src/fasta/parser/listener.dart
+++ b/pkg/front_end/lib/src/fasta/parser/listener.dart
@@ -591,9 +591,11 @@ class Listener {
   /// - type variables
   /// - formal parameters
   /// - initializers
+  /// - native clause
   /// - async marker
   /// - body
-  void endMethod(Token getOrSet, Token beginToken, Token endToken) {
+  void endMethod(
+      Token getOrSet, Token beginToken, Token nativeToken, Token endToken) {
     logEvent("Method");
   }