QmlProfiler: show a warning if unsaved notes are to be discarded

Change-Id: I5152f0eefd1f0beec2b0f4fc9e27fedeb3bf7a14
Task-number: QTCREATORBUG-13318
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>

src/plugins/qmlprofiler/qmlprofilertool.h

@@ -94,6 +94,7 @@ private:
     void populateFileFinder(QString projectDirectory = QString(), QString activeSysroot = QString());
     template<QmlDebug::ProfileFeature feature>
     void updateFeaturesMenu(quint64 features);
+    bool checkForUnsavedNotes();
 
     class QmlProfilerToolPrivate;
     QmlProfilerToolPrivate *d;