QmlObserver: breakpoint list is shared between engines

Reviewed by:  Kai Koehne, Andre Poenitz

src/plugins/debugger/qml/qmlengine.h

@@ -93,6 +93,7 @@ private:
     void selectThread(int index);
 
     void attemptBreakpointSynchronization();
+    bool acceptsBreakpoint(const Internal::BreakpointData *br);
 
     void assignValueInDebugger(const Internal::WatchData *w, const QString &expr, const QVariant &value);
     void loadSymbols(const QString &moduleName);