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

sdk/lib/_internal/compiler/implementation/js_backend/emitter_no_eval.dart

Index: sdk/lib/_internal/compiler/implementation/js_backend/emitter_no_eval.dart
diff --git a/sdk/lib/_internal/compiler/implementation/js_backend/emitter_no_eval.dart b/sdk/lib/_internal/compiler/implementation/js_backend/emitter_no_eval.dart
index 4a481ff818aecc76f96a8ab0a0de9ddd9ca85b39..986b586d6fa10e662bcc817755af1a5dd6056d0b 100644
--- a/sdk/lib/_internal/compiler/implementation/js_backend/emitter_no_eval.dart
+++ b/sdk/lib/_internal/compiler/implementation/js_backend/emitter_no_eval.dart
@@ -138,35 +138,10 @@ $classesCollector.$mangledName = {'': function $mangledName(self, target) {
     if (emitEndingComma) buffer.add(', ');
   }
 
-  void emitClassGettersSetters(ClassElement classElement,
-                               CodeBuffer buffer,
-                               bool emitLeadingComma) {
-    emitComma() {
-      if (emitLeadingComma) {
-        buffer.add(",\n ");
-      } else {
-        emitLeadingComma = true;
-      }
-    }
-
-    visitClassFields(classElement, (Element member,
-                                    String name,
-                                    bool needsGetter,
-                                    bool needsSetter,
-                                    bool needsCheckedSetter) {
-      if (needsGetter) {
-        emitComma();
-        generateGetter(member, name, buffer);
-      }
-      if (needsSetter) {
-        emitComma();
-        generateSetter(member, name, buffer);
-      }
-      if (needsCheckedSetter) {
-        assert(!needsSetter);
-        emitComma();
-        generateCheckedSetter(member, name, buffer);
-      }
-    });
+  bool getterAndSetterCanBeImplementedByFieldSpec(Element member,
+                                                  String name,
+                                                  bool needsGetter,
+                                                  bool needsSetter) {
+    return false;
   }
 }