debugger: work on watchmodel bulk insert

Change-Id: Ib92c8b02bc8e608810b3fa0f2d70d6547e428933
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/debugger/watchhandler.h

@@ -142,6 +142,7 @@ public:
     void removeData(const QByteArray &iname);
     void removeChildren(const QByteArray &iname);
     void removeAllData();
+    void markAllUnchanged();
 
 private:
     friend class WatchModel;