Make -Wshadow happy.

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 720 matching lines @@
 
 
 /**
  * A PersistentBase which has move semantics.
  *
  * Note: Persistent class hierarchy is subject to future changes.
  */
 template<class T>
 class UniquePersistent : public PersistentBase<T> {
   struct RValue {
-    V8_INLINE explicit RValue(UniquePersistent* object) : object(object) {}
+    V8_INLINE explicit RValue(UniquePersistent* obj) : object(obj) {}
     UniquePersistent* object;
   };
 
  public:
     /**
    * A UniquePersistent with no storage cell.
    */
   V8_INLINE UniquePersistent() : PersistentBase<T>(0) { }
   /**
    * Construct a UniquePersistent from a Handle.
@@ skipping 5694 matching lines @@
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_