Fix JSON.stringify for objects with interceptor handlers.

test/cctest/test-accessors.cc

Index: test/cctest/test-accessors.cc
diff --git a/test/cctest/test-accessors.cc b/test/cctest/test-accessors.cc
index 0b342ff3d920fd5a4bf91504c082336d9dac8e4c..d44503534fb6b5b4479fd2b37e2d763bfde4f9c5 100644
--- a/test/cctest/test-accessors.cc
+++ b/test/cctest/test-accessors.cc
@@ -453,3 +453,29 @@ THREADED_TEST(HandleScopeSegment) {
       "result;"))->Run();
   CHECK_EQ(100, result->Int32Value());
 }
+
+
+v8::Handle<v8::Array> JSONStringifyEnumerator(const AccessorInfo& info) {
+  v8::Handle<v8::Array> array = v8::Array::New(1);
+  array->Set(0, v8_str("regress"));
+  return array;
+}
+
+
+v8::Handle<v8::Value> JSONStringifyGetter(Local<String> name,
+                                          const AccessorInfo& info) {
+  return v8_str("crbug-161028");
+}
+
+
+THREADED_TEST(JSONStringifyNamedInterceptorObject) {
+  v8::HandleScope scope;
+  LocalContext env;
+
+  v8::Handle<v8::ObjectTemplate> obj = ObjectTemplate::New();
+  obj->SetNamedPropertyHandler(
+      JSONStringifyGetter, NULL, NULL, NULL, JSONStringifyEnumerator);
+  env->Global()->Set(v8_str("obj"), obj->NewInstance());
+  v8::Handle<v8::String> expected = v8_str("{\"regress\":\"crbug-161028\"}");
+  CHECK(CompileRun("JSON.stringify(obj)")->Equals(expected));
+}