Make the debugger completely unload when the debug event listener is unregist...

src/debug.h

 // Copyright 2006-2008 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 71 matching lines @@
   bool Done() const;
   void SetBreakPoint(Handle<Object> break_point_object);
   void ClearBreakPoint(Handle<Object> break_point_object);
   void SetOneShot();
   void ClearOneShot();
   void PrepareStepIn();
   bool IsExit() const;
   bool HasBreakPoint();
   bool IsDebugBreak();
   Object* BreakPointObjects();
+  void ClearAllDebugBreak();
 
 
   inline int code_position() { return pc() - debug_info_->code()->entry(); }
   inline int break_point() { return break_point_; }
   inline int position() { return position_; }
   inline int statement_position() { return statement_position_; }
   inline Address pc() { return reloc_iterator_->rinfo()->pc(); }
   inline Code* code() { return debug_info_->code(); }
   inline RelocInfo* rinfo() { return reloc_iterator_->rinfo(); }
   inline RelocInfo::Mode rmode() const {
@@ skipping 63 matching lines @@
   static void Unload();
   static bool IsLoaded() { return !debug_context_.is_null(); }
   static bool InDebugger() { return Top::is_break(); }
   static void Iterate(ObjectVisitor* v);
 
   static Object* Break(Arguments args);
   static void SetBreakPoint(Handle<SharedFunctionInfo> shared,
                             int source_position,
                             Handle<Object> break_point_object);
   static void ClearBreakPoint(Handle<Object> break_point_object);
+  static void ClearAllBreakPoints();
   static void FloodWithOneShot(Handle<SharedFunctionInfo> shared);
   static void FloodHandlerWithOneShot();
   static void ChangeBreakOnException(ExceptionBreakType type, bool enable);
   static void PrepareStep(StepAction step_action, int step_count);
   static void ClearStepping();
   static bool StepNextContinue(BreakLocationIterator* break_location_iterator,
                                JavaScriptFrame* frame);
   static Handle<DebugInfo> GetDebugInfo(Handle<SharedFunctionInfo> shared);
   static bool HasDebugInfo(Handle<SharedFunctionInfo> shared);
 
   // Returns whether the operation succeeded.
   static bool EnsureDebugInfo(Handle<SharedFunctionInfo> shared);
 
   static bool IsDebugBreak(Address addr);
+  static bool IsDebugBreakAtReturn(RelocInfo* rinfo);
 
   // Check whether a code stub with the specified major key is a possible break
   // point location.
   static bool IsSourceBreakStub(Code* code);
   static bool IsBreakStub(Code* code);
 
   // Find the builtin to use for invoking the debug break
   static Handle<Code> FindDebugBreak(RelocInfo* rinfo);
 
   static Handle<Object> GetSourceBreakLocations(
@@ skipping 51 matching lines @@
     return &debug_break_return_;
   }
 
   static const int kEstimatedNofDebugInfoEntries = 16;
   static const int kEstimatedNofBreakPointsInFunction = 16;
 
   static void HandleWeakDebugInfo(v8::Persistent<v8::Value> obj, void* data);
 
   friend class Debugger;
   friend Handle<FixedArray> GetDebuggedFunctions();  // Found in test-debug.cc
+  friend void CheckDebuggerUnloaded(bool);  // Found in test-debug.cc
 
   // Threading support.
   static char* ArchiveDebug(char* to);
   static char* RestoreDebug(char* from);
   static int ArchiveSpacePerThread();
 
   // Mirror cache handling.
   static void ClearMirrorCache();
 
   // Code generation assumptions.
@@ skipping 330 matching lines @@
   }
  private:
   Debug::AddressId id_;
   int reg_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_V8_DEBUG_H_