Add a convenience method to get the debugged context

src/debug/debug.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_DEBUG_DEBUG_H_
 #define V8_DEBUG_DEBUG_H_
 
 #include "src/allocation.h"
 #include "src/arguments.h"
 #include "src/assembler.h"
@@ skipping 287 matching lines @@
                    Handle<JSObject> exec_state,
                    Handle<JSObject> event_data,
                    Handle<Object> callback_data,
                    v8::Debug::ClientData* client_data);
   virtual DebugEvent GetEvent() const;
   virtual v8::Local<v8::Object> GetExecutionState() const;
   virtual v8::Local<v8::Object> GetEventData() const;
   virtual v8::Local<v8::Context> GetEventContext() const;
   virtual v8::Local<v8::Value> GetCallbackData() const;
   virtual v8::Debug::ClientData* GetClientData() const;
+  virtual v8::Isolate* GetIsolate() const;
+
  private:
   DebugEvent event_;  // Debug event causing the break.
   Handle<JSObject> exec_state_;         // Current execution state.
   Handle<JSObject> event_data_;         // Data associated with the event.
   Handle<Object> callback_data_;        // User data passed with the callback
                                         // when it was registered.
   v8::Debug::ClientData* client_data_;  // Data passed to DebugBreakForCommand.
 };
 
 
@@ skipping 479 matching lines @@
                                   Handle<Code> code);
   static bool DebugBreakSlotIsPatched(Address pc);
   static void ClearDebugBreakSlot(Isolate* isolate, Address pc);
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_DEBUG_DEBUG_H_