Add @JSName annotation for native fields and methods - second try.

tests/compiler/dart2js_native/native_method_rename1_frog_test.dart

Index: tests/compiler/dart2js_native/native_method_rename1_frog_test.dart
diff --git a/tests/compiler/dart2js_native/native_method_rename1_frog_test.dart b/tests/compiler/dart2js_native/native_method_rename1_frog_test.dart
index 820763e8a5b5883c89893f3844ffff3b2b15e0ec..a4add4cce04a56f6884d4a9caa33e83ad499187b 100644
--- a/tests/compiler/dart2js_native/native_method_rename1_frog_test.dart
+++ b/tests/compiler/dart2js_native/native_method_rename1_frog_test.dart
@@ -5,9 +5,14 @@
 // Test the feature where the native string declares the native method's name.
 
 class A native "*A" {
-  int foo() native 'fooA';
-  int bar() native 'barA';
-  int baz() native 'bazA';
+  @JSName('fooA')
+  int foo() native;
+
+  @JSName('barA')
+  int bar() native;
+
+  @JSName('bazA')
+  int baz() native;
 }
 
 A makeA() native;