[builtins] Migrate Object.getOwnPropertyDescriptor to C++.

src/runtime/runtime-object.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/bootstrapper.h"
 #include "src/debug/debug.h"
 #include "src/isolate-inl.h"
@@ skipping 248 matching lines @@
   DCHECK(args.length() == 2);
   CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0);
   CONVERT_ARG_HANDLE_CHECKED(Name, name, 1);
   Handle<Object> result;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
                                      GetOwnProperty(isolate, obj, name));
   return *result;
 }
 
 
-// ES6 19.1.2.6
-RUNTIME_FUNCTION(Runtime_GetOwnProperty) {
-  HandleScope scope(isolate);
-  DCHECK(args.length() == 2);
-  CONVERT_ARG_HANDLE_CHECKED(Object, object, 0);
-  CONVERT_ARG_HANDLE_CHECKED(Object, raw_name, 1);
-  // 1. Let obj be ? ToObject(O).
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, object,
-                                     Object::ToObject(isolate, object));
-  // 2. Let key be ? ToPropertyKey(P).
-  Handle<Name> key;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, key,
-                                     Object::ToName(isolate, raw_name));
-
-  // 3. Let desc be ? obj.[[GetOwnProperty]](key).
-  PropertyDescriptor desc;
-  Maybe<bool> found = JSReceiver::GetOwnPropertyDescriptor(
-      isolate, Handle<JSReceiver>::cast(object), key, &desc);
-  MAYBE_RETURN(found, isolate->heap()->exception());
-  // 4. Return FromPropertyDescriptor(desc).
-  if (!found.FromJust()) return isolate->heap()->undefined_value();
-  return *desc.ToObject(isolate);
-}
-
-
 RUNTIME_FUNCTION(Runtime_OptimizeObjectForAddingMultipleProperties) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 2);
   CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0);
   CONVERT_SMI_ARG_CHECKED(properties, 1);
   // Conservative upper limit to prevent fuzz tests from going OOM.
   RUNTIME_ASSERT(properties <= 100000);
   if (object->HasFastProperties() && !object->IsJSGlobalProxy()) {
     JSObject::NormalizeProperties(object, KEEP_INOBJECT_PROPERTIES, properties,
                                   "OptimizeForAdding");
@@ skipping 984 matching lines @@
   DCHECK(args.length() == 2);
   CONVERT_ARG_HANDLE_CHECKED(Object, o, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, properties, 1);
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, o, JSReceiver::DefineProperties(isolate, o, properties));
   return *o;
 }
 
 }  // namespace internal
 }  // namespace v8