Pass undefined to JS builtins when called with implicit receiver.

test/cctest/test-api.cc

 // Copyright 2011 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 6646 matching lines @@
                                        Local<Value>(),
                                        signature));
   proto->Set(v8_str("x"), v8_num(12));
 
   instance->SetAccessor(v8_str("y"), ShadowYGetter, ShadowYSetter);
 
   Local<Value> o = t->GetFunction()->NewInstance();
   context->Global()->Set(v8_str("__proto__"), o);
 
   Local<Value> value =
-      Script::Compile(v8_str("propertyIsEnumerable(0)"))->Run();
+      Script::Compile(v8_str("this.propertyIsEnumerable(0)"))->Run();
   CHECK(value->IsBoolean());
   CHECK(!value->BooleanValue());
 
   value = Script::Compile(v8_str("x"))->Run();
   CHECK_EQ(12, value->Int32Value());
 
   value = Script::Compile(v8_str("f()"))->Run();
   CHECK_EQ(42, value->Int32Value());
 
   Script::Compile(v8_str("y = 42"))->Run();
@@ skipping 7822 matching lines @@
 
 THREADED_TEST(CallAPIFunctionOnNonObject) {
   v8::HandleScope scope;
   LocalContext context;
   Handle<FunctionTemplate> templ = v8::FunctionTemplate::New(NonObjectThis);
   Handle<Function> function = templ->GetFunction();
   context->Global()->Set(v8_str("f"), function);
   TryCatch try_catch;
   CompileRun("f.call(2)");
 }