Using RelocInfo instead of DebuggerStatementStub

src/x64/macro-assembler-x64.h

 // Copyright 2009 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 80 matching lines @@
   // ---------------------------------------------------------------------------
   // Debugger Support
 
   void SaveRegistersToMemory(RegList regs);
   void RestoreRegistersFromMemory(RegList regs);
   void PushRegistersFromMemory(RegList regs);
   void PopRegistersToMemory(RegList regs);
   void CopyRegistersFromStackToMemory(Register base,
                                       Register scratch,
                                       RegList regs);
+  void DebugBreak();
 #endif
 
   // ---------------------------------------------------------------------------
   // Stack limit support
 
   // Do simple test for stack overflow. This doesn't handle an overflow.
   void StackLimitCheck(Label* on_stack_limit_hit);
 
   // ---------------------------------------------------------------------------
   // Activation frames
@@ skipping 701 matching lines @@
   }                                                                       \
   masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_X64_MACRO_ASSEMBLER_X64_H_