Fix the bug in the bug fix.

src/type-info.cc

 // Copyright 2010 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 339 matching lines @@
     isolate->stub_cache()->CollectMatchingMaps(types, *name, flags);
     return types->length() > 0 ? types : NULL;
   } else {
     return NULL;
   }
 }
 
 
 void TypeFeedbackOracle::SetInfo(int position, Object* target) {
   MaybeObject* maybe_result = dictionary_->AtNumberPut(position, target);
+  USE(maybe_result);
+#ifdef DEBUG
   Object* result;
-  USE(maybe_result);
-  USE(result);
   // Dictionary has been allocated with sufficient size for all elements.
   ASSERT(maybe_result->ToObject(&result));
   ASSERT(*dictionary_ == result);
+#endif
 }
 
 
 void TypeFeedbackOracle::PopulateMap(Handle<Code> code) {
   Isolate* isolate = Isolate::Current();
   HandleScope scope(isolate);
 
   const int kInitialCapacity = 16;
   List<int> code_positions(kInitialCapacity);
   List<int> source_positions(kInitialCapacity);
@@ skipping 86 matching lines @@
         source_positions->Add(position);
       }
     } else {
       ASSERT(RelocInfo::IsPosition(mode));
       position = static_cast<int>(info->data());
     }
   }
 }
 
 } }  // namespace v8::internal