QmlObserver: breakpoint list is shared between engines

Reviewed by:  Kai Koehne, Andre Poenitz

src/plugins/debugger/qml/qmlcppengine.h

@@ -52,6 +52,7 @@ public:
     virtual void updateAll();
 
     virtual void attemptBreakpointSynchronization();
+    virtual bool acceptsBreakpoint(const Internal::BreakpointData *br);
     virtual void selectThread(int index);
 
     virtual void assignValueInDebugger(const Internal::WatchData *w, const QString &expr, const QVariant &value);