Fix issue 124 by computing the receiver correctly when...

src/objects.h

 // Copyright 2006-2008 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 2766 matching lines @@
  public:
   // [builtins]: the object holding the runtime routines written in JS.
   DECL_ACCESSORS(builtins, JSBuiltinsObject)
 
   // [global context]: the global context corresponding to this global objet.
   DECL_ACCESSORS(global_context, Context)
 
   // [global receiver]: the global receiver object of the context
   DECL_ACCESSORS(global_receiver, JSObject)
 
+  // Casting.
+  static inline GlobalObject* cast(Object* obj);
+
   // Layout description.
   static const int kBuiltinsOffset = JSObject::kHeaderSize;
   static const int kGlobalContextOffset = kBuiltinsOffset + kPointerSize;
   static const int kGlobalReceiverOffset = kGlobalContextOffset + kPointerSize;
   static const int kHeaderSize = kGlobalReceiverOffset + kPointerSize;
 
  private:
   friend class AGCCVersionRequiresThisClassToHaveAFriendSoHereItIs;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(GlobalObject);
@@ skipping 1257 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_