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

tests/compiler/dart2js_native/native_method_rename2_frog_test.dart

Index: tests/compiler/dart2js_native/native_method_rename2_frog_test.dart
diff --git a/tests/compiler/dart2js_native/native_method_rename2_frog_test.dart b/tests/compiler/dart2js_native/native_method_rename2_frog_test.dart
index f3d4bffa671fc3e6e698ce42a3e0d44b170f45ed..c030c7ebc6113595155972f289cfa2388001f6a5 100644
--- a/tests/compiler/dart2js_native/native_method_rename2_frog_test.dart
+++ b/tests/compiler/dart2js_native/native_method_rename2_frog_test.dart
@@ -5,11 +5,13 @@
 // Test the feature where the native string declares the native method's name.
 
 class A native "*A" {
-  int foo() native 'fooA';
+  @JSName('fooA')
+  int foo() native;
 }
 
 class B extends A native "*B" {
-  int foo() native 'fooB';
+  @JSName('fooB')
+  int foo() native;
 }
 
 makeA() native;