Debugger: Merge two remote setup communication paths

Success and failure paths are very similar.

Change-Id: Iebf218f64401884c014f1f7745d504183018addd
Reviewed-by: hjk <hjk121@nokiamail.com>

src/plugins/debugger/qml/qmlengine.h

@@ -60,9 +60,8 @@ public:
     ~QmlEngine();
 
     void notifyInferiorSetupOk();
-    void notifyEngineRemoteSetupDone(int gdbServerPort, int qmlPort);
-    void notifyEngineRemoteSetupFailed(const QString &message);
     void notifyEngineRemoteServerRunning(const QByteArray &, int pid);
+    void notifyEngineRemoteSetupFinished(const RemoteSetupResult &result);
 
     bool canDisplayTooltip() const;