Mixed C++/QML debugging does not work.

Manual test:

• Create a hybrid QML/C++ project (Qt Quick Application). Leave shadow build on.
• Activating the debugging helpers in the qmake step on the Build configuration page, select Qt version >- 4.7.1. Rebuild. Check both "C++" and "QML" Debugger under Run Settings.
• Place a breakpoint in main.cpp, before QApplication object is constructed.
• Place a breakpoint in the onClicked() handler.
• Start debugging.

Effect: see attached screenshot. Also in the application output view:

QDeclarativeDebugServer: Ignoring "-qmljsdebugger=port:3768". Debugging has not been enabled.