Fix warnings

include/v8.h

 // 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 311 matching lines @@
   template<class F> friend class Local;
   template<class F> friend class FunctionCallbackInfo;
   template<class F> friend class PropertyCallbackInfo;
   template<class F> friend class internal::CustomArguments;
   friend Handle<Primitive> Undefined(Isolate* isolate);
   friend Handle<Primitive> Null(Isolate* isolate);
   friend Handle<Boolean> True(Isolate* isolate);
   friend Handle<Boolean> False(Isolate* isolate);
   friend class Context;
   friend class HandleScope;
+  friend class Object;
+  friend class Private;
 
   V8_INLINE static Handle<T> New(Isolate* isolate, T* that);
 
   T* val_;
 };
 
 
 /**
  * A light-weight stack-allocated object handle.  All operations
  * that return objects from within v8 return them in local handles.  They
@@ skipping 6193 matching lines @@
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_