added debug output for update Rect passed to queue_draw when TabWidgetData::setDirty is called.
added debug output for update Rect passed to queue_draw when TabWidgetData::setDirty is called.

blueshell-next/carbon-gtk,blue-shell/carbon-gtk,KDE/oxygen-gtk,blue-shell/carbon-gtk,KDE/oxygen-gtk,blueshell-next/carbon-gtk