remove most uses of raw handle constructors

src/arguments.cc

 // Copyright 2013 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 64 matching lines @@
 }
 
 
 template<typename T>
 template<typename V>
 v8::Handle<V> CustomArguments<T>::GetReturnValue(Isolate* isolate) {
   // Check the ReturnValue.
   Object** handle = &this->end()[kReturnValueOffset];
   // Nothing was set, return empty handle as per previous behaviour.
   if ((*handle)->IsTheHole()) return v8::Handle<V>();
-  return v8::Handle<V>(reinterpret_cast<V*>(handle));
+  return Utils::Convert<Object, V>(Handle<Object>(handle));
 }
 
 
 v8::Handle<v8::Value> FunctionCallbackArguments::Call(InvocationCallback f) {
   Isolate* isolate = this->isolate();
   void* f_as_void = CallbackTable::FunctionToVoidPtr(f);
   bool new_style = CallbackTable::ReturnsVoid(isolate, f_as_void);
   if (new_style) {
     FunctionCallback c = reinterpret_cast<FunctionCallback>(f);
     FunctionCallbackInfo<v8::Value> info(end(),
@@ skipping 90 matching lines @@
 FOR_EACH_CALLBACK_TABLE_MAPPING_2_VOID_RETURN(WRITE_CALL_2_VOID)
 
 #undef WRITE_CALL_0
 #undef WRITE_CALL_1
 #undef WRITE_CALL_2
 #undef WRITE_CALL_2_VOID
 
 
 } }  // namespace v8::internal