[proxies] Update Object.defineProperty/ies for JSProxies

src/objects.h

 // Copyright 2012 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.
 
 #ifndef V8_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 
 #include "src/allocation.h"
@@ skipping 9506 matching lines @@
 
   DECLARE_CAST(JSProxy)
 
   // ES6 9.5.1
   static MaybeHandle<Object> GetPrototype(Handle<JSProxy> receiver);
 
   // ES6 9.5.5
   static bool GetOwnPropertyDescriptor(LookupIterator* it,
                                        PropertyDescriptor* desc);
 
+  // ES6 9.5.6
+  static bool DefineOwnProperty(Isolate* isolate, Handle<JSProxy> object,
+                                Handle<Object> key, PropertyDescriptor* desc,
+                                ShouldThrow should_throw);
+
   MUST_USE_RESULT static MaybeHandle<Object> GetPropertyWithHandler(
       Handle<JSProxy> proxy,
       Handle<Object> receiver,
       Handle<Name> name);
 
   // If the handler defines an accessor property with a setter, invoke it.
   // If it defines an accessor property without a setter, or a data property
   // that is read-only, fail.  In all these cases set '*done' to true.
   // Otherwise set it to false, in which case the return value is not
   // meaningful.
   MUST_USE_RESULT
   static Maybe<bool> SetPropertyViaPrototypesWithHandler(
       Handle<JSProxy> proxy, Handle<Object> receiver, Handle<Name> name,
       Handle<Object> value, ShouldThrow should_throw, bool* done);
 
   MUST_USE_RESULT static Maybe<PropertyAttributes>
-      GetPropertyAttributesWithHandler(Handle<JSProxy> proxy,
-                                       Handle<Object> receiver,
-                                       Handle<Name> name);
+  GetPropertyAttributesWithHandler(LookupIterator* it);
+

[neis, 2015/11/17 21:37:40]

Can we get rid of the "WithHandler" suffix?

[Jakob Kummerow, 2015/11/18 14:35:50]

Done.

   MUST_USE_RESULT static Maybe<bool> SetPropertyWithHandler(
       Handle<JSProxy> proxy, Handle<Object> receiver, Handle<Name> name,
       Handle<Object> value, ShouldThrow should_throw);
 
   // Dispatched behavior.
   DECLARE_PRINTER(JSProxy)
   DECLARE_VERIFIER(JSProxy)
 
   // Layout description. We add padding so that a proxy has the same
   // size as a virgin JSObject. This is essential for becoming a JSObject
@@ skipping 1150 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_