Debugger: Fix long standing regression of property display with Qt 4

Change-Id: Ic4ed92a00d2084b63f79da764377ccde42475ac6
Reviewed-by: hjk <hjk121@nokiamail.com>
Debugger: Show name also for QObject subclasses without Q_OBJECT macro

Change-Id: Ifabf3cc68751a06c15fc1a5a05cad5e5a64c8775
Reviewed-by: hjk <hjk121@nokiamail.com>