Make intercepted properties retrievable only by getter to be not enumerable.

test/cctest/test-api.cc

 // Copyright 2007-2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 7210 matching lines @@
   LocalContext context;
   templ->Set("42", v8_num(42));
   v8::Handle<v8::Object> obj = templ->NewInstance();
   context->Global()->Set(v8_str("obj"), obj);
   v8::Handle<Value> value = CompileRun("obj[42]");
   CHECK(value->IsInt32());
   CHECK_EQ(42, value->Int32Value());
 }
 
 
+THREADED_TEST(NamedPropertyHandlerGetterAttributes) {
+  v8::HandleScope scope;
+  v8::Handle<v8::FunctionTemplate> templ = v8::FunctionTemplate::New();
+  templ->InstanceTemplate()->SetNamedPropertyHandler(InterceptorLoadXICGetter);
+  LocalContext env;
+  env->Global()->Set(v8_str("obj"),
+                     templ->GetFunction()->NewInstance());
+  ExpectTrue("obj.x === 42");
+  ExpectTrue("!obj.propertyIsEnumerable('x')");
+}
+
+
 static v8::Handle<Value> ParentGetter(Local<String> name,
                                       const AccessorInfo& info) {
   ApiTestFuzzer::Fuzz();
   return v8_num(1);
 }
 
 
 static v8::Handle<Value> ChildGetter(Local<String> name,
                                      const AccessorInfo& info) {
   ApiTestFuzzer::Fuzz();
@@ skipping 3366 matching lines @@
   const char* code =
       "(function() {"
       "  for (var i = 0; i < 2*16; i++) {"
       "    %_GetFromCache(0, 'a' + i);"
       "  };"
       "  return 'PASSED';"
       "})()";
   v8::internal::Heap::ClearJSFunctionResultCaches();
   ExpectString(code, "PASSED");
 }