On some xcb platforms the xcb_configure_notify_event_t is sent after the
window is fully exposed which leads to a wrong position for
QWidget::mapToGlobal(). In this case this results in a wrong position
for QCursor::setPos() which lets the test fail.
Fix it by waiting for a move event with a position != 0,0 before calling
mapToParent/Global().
Pick-to: 6.7 6.5 6.2
Fixes: QTBUG-123998
Change-Id: Ic5e989c4497ccf3ed720a521f9d7e73632b4b1fc
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
f6fdd91941