Refactor the compiling pipeline.

src/optimizing-compiler-thread.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 61 matching lines @@
 
   ~OptimizingCompilerThread();
 
   void Run();
   void Stop();
   void Flush();
   void QueueForOptimization(RecompileJob* optimizing_compiler);
   void Unblock();
   void InstallOptimizedFunctions();
   RecompileJob* FindReadyOSRCandidate(Handle<JSFunction> function,
-                                      uint32_t osr_pc_offset);
-  bool IsQueuedForOSR(Handle<JSFunction> function, uint32_t osr_pc_offset);
+                                      BailoutId osr_ast_id);
+  bool IsQueuedForOSR(Handle<JSFunction> function, BailoutId osr_ast_id);
 
   bool IsQueuedForOSR(JSFunction* function);
 
   inline bool IsQueueAvailable() {
     LockGuard<Mutex> access_input_queue(&input_queue_mutex_);
     return input_queue_length_ < input_queue_capacity_;
   }
 
   inline void AgeBufferedOsrJobs() {
     // Advance cursor of the cyclic buffer to next empty slot or stale OSR job.
@@ skipping 61 matching lines @@
 
   int osr_hits_;
   int osr_attempts_;
 
   int blocked_jobs_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OPTIMIZING_COMPILER_THREAD_H_