Fix redefining of attributes on aliased arguments.

src/objects-debug.cc

 // 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 315 matching lines @@
 }
 
 
 void TypeFeedbackInfo::TypeFeedbackInfoVerify() {
   VerifyObjectField(kIcTotalCountOffset);
   VerifyObjectField(kIcWithTypeinfoCountOffset);
   VerifyHeapPointer(type_feedback_cells());
 }
 
 
+void AliasedArgumentsEntry::AliasedArgumentsEntryVerify() {
+  VerifySmiField(kAliasedContextSlot);
+}
+
+
 void FixedArray::FixedArrayVerify() {
   for (int i = 0; i < length(); i++) {
     Object* e = get(i);
     if (e->IsHeapObject()) {
       VerifyHeapPointer(e);
     } else {
       e->Verify();
     }
   }
 }
@@ skipping 517 matching lines @@
         ASSERT(e->IsUndefined());
       }
     }
   }
 }
 
 
 #endif  // DEBUG
 
 } }  // namespace v8::internal