Fix compile error.

src/optimizing-compiler-thread.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 188 matching lines @@
 }
 
 
 void OptimizingCompilerThread::InstallOptimizedFunctions() {
   ASSERT(!IsOptimizerThread());
   HandleScope handle_scope(isolate_);
 
   OptimizingCompiler* compiler;
   while (true) {
     { LockGuard<Mutex> access_queue(&queue_mutex_);
-      if (!output_queue_.Dequeue(&optimizing_compiler)) break;
+      if (!output_queue_.Dequeue(&compiler)) break;
     }
     Compiler::InstallOptimizedCode(compiler);
   }
 
   // Remove the oldest OSR candidates that are ready so that we
   // only have limited number of them waiting.
   if (FLAG_concurrent_osr) RemoveStaleOSRCandidates();
 }
 
 
@@ skipping 77 matching lines @@
 #ifdef DEBUG
 bool OptimizingCompilerThread::IsOptimizerThread() {
   if (!FLAG_concurrent_recompilation) return false;
   LockGuard<Mutex> lock_guard(&thread_id_mutex_);
   return ThreadId::Current().ToInteger() == thread_id_;
 }
 #endif
 
 
 } }  // namespace v8::internal