Debugger: Fix "attach to QML port"

In this case we don't get any application output / message
telling us that the server is waiting, so let's try to connect
directly.

This is a regression introduced in commit 742019e301

Change-Id: I85d9f846c72e8b227dae5d6e847ab9366a34e2cc
Reviewed-by: Aurindam Jana <aurindam.jana@nokia.com>

src/plugins/debugger/qml/qmlengine.cpp

@@ -412,7 +412,9 @@ void QmlEngine::runEngine()
     QTC_ASSERT(state() == EngineRunRequested, qDebug() << state());
 
     if (!isSlaveEngine()) {
-        if (startParameters().startMode != AttachToRemoteServer)
+        if (startParameters().startMode == AttachToRemoteServer)
+            beginConnection();
+        else
             startApplicationLauncher();
     }
 }