QmlDebugger: user input on watches

Reviewed-by: hjk

src/plugins/debugger/qml/qmlengine.h

@@ -63,6 +63,7 @@ public:
     void showMessage(const QString &msg, int channel = LogDebug,
                      int timeout = -1) const;
     void filterApplicationMessage(const QString &msg, int channel);
+    virtual bool acceptsWatchesWhileRunning() const;
 
 public slots:
     void messageReceived(const QByteArray &message);