Debugger: use debug break slots to break at function exit.

src/arm/macro-assembler-arm.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_ARM_MACRO_ASSEMBLER_ARM_H_
 #define V8_ARM_MACRO_ASSEMBLER_ARM_H_
 
 #include "src/assembler.h"
 #include "src/bailout-reason.h"
 #include "src/frames.h"
@@ skipping 1488 matching lines @@
 class CodePatcher {
  public:
   enum FlushICache {
     FLUSH,
     DONT_FLUSH
   };
 
   CodePatcher(byte* address,
               int instructions,
               FlushICache flush_cache = FLUSH);
-  virtual ~CodePatcher();
+  ~CodePatcher();
 
   // Macro assembler to emit code.
   MacroAssembler* masm() { return &masm_; }
 
   // Emit an instruction directly.
   void Emit(Instr instr);
 
   // Emit an address directly.
   void Emit(Address addr);
 
@@ skipping 28 matching lines @@
 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__)
 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_MACRO_ASSEMBLER_ARM_H_