Log deopts with --log-timer-events.

src/log.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 275 matching lines @@
   void SharedLibraryEvent(const char* library_path,
                           uintptr_t start,
                           uintptr_t end);
   void SharedLibraryEvent(const wchar_t* library_path,
                           uintptr_t start,
                           uintptr_t end);
 
   // ==== Events logged by --log-timer-events. ====
   enum StartEnd { START, END };
 
+  void CodeDeoptEvent(Code* code);
+
   void TimerEvent(StartEnd se, const char* name);
 
   static void EnterExternal(Isolate* isolate);
   static void LeaveExternal(Isolate* isolate);
 
   class TimerEventScope {
    public:
     TimerEventScope(Isolate* isolate, const char* name)
         : isolate_(isolate), name_(name) {
       if (FLAG_log_internal_timer_events) LogTimerEvent(START);
@@ skipping 213 matching lines @@
   int64_t epoch_;
 
   friend class CpuProfiler;
 };
 
 
 } }  // namespace v8::internal
 
 
 #endif  // V8_LOG_H_