put js accessor ics behind a flags until fixed

test/cctest/test-accessors.cc

 // Copyright 2012 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 534 matching lines @@
   LocalContext env;
   v8::HandleScope scope(env->GetIsolate());
 
   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));
 }
+
+
+THREADED_TEST(CrossContextAccess) {
+  LocalContext env;
+  v8::Isolate* isolate = env->GetIsolate();
+  v8::HandleScope scope(isolate);
+  v8::Handle<v8::Function> fun = v8::Function::New(isolate, handle_property);
+  LocalContext switch_context;
+  switch_context->Global()->Set(v8_str("fun"), fun);
+  v8::TryCatch try_catch;
+  CompileRun(
+      "var o = Object.create(null, { n: { get:fun } });"
+      "for (var i = 0; i < 10; i++) o.n;");
+  CHECK(!try_catch.HasCaught());
+}