[debugger] remove debugger statement support from FCG/CS.

src/ia32/macro-assembler-ia32.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_IA32_MACRO_ASSEMBLER_IA32_H_
 #define V8_IA32_MACRO_ASSEMBLER_IA32_H_
 
 #include "src/assembler.h"
 #include "src/bailout-reason.h"
 #include "src/frames.h"
@@ skipping 210 matching lines @@
   // JSFunction. Only scratch is clobbered by the operation.
   void RecordWriteCodeEntryField(Register js_function, Register code_entry,
                                  Register scratch);
 
   // For page containing |object| mark the region covering the object's map
   // dirty. |object| is the object being stored into, |map| is the Map object
   // that was stored.
   void RecordWriteForMap(Register object, Handle<Map> map, Register scratch1,
                          Register scratch2, SaveFPRegsMode save_fp);
 
-  // ---------------------------------------------------------------------------
-  // Debugger Support
-
-  void DebugBreak();
+  // Frame restart support
   void MaybeDropFrames();
 
   // Generates function and stub prologue code.
   void StubPrologue(StackFrame::Type type);
   void Prologue(bool code_pre_aging);
 
   // Enter specific kind of exit frame. Expects the number of
   // arguments in register eax and sets up the number of arguments in
   // register edi and the pointer to the first argument in register
   // esi.
@@ skipping 733 matching lines @@
 inline Operand NativeContextOperand() {
   return ContextOperand(esi, Context::NATIVE_CONTEXT_INDEX);
 }
 
 #define ACCESS_MASM(masm) masm->
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_IA32_MACRO_ASSEMBLER_IA32_H_