The test produces compiler warnings in release builds:
tst_qgraphicswidget.cpp: In member function 'void tst_QGraphicsWidget::setTabOrderAndReparent()':
tst_qgraphicswidget.cpp:1521:89: warning: 'w2' may be used uninitialized in this function [-Wmaybe-uninitialized]
tst_qgraphicswidget.cpp:1536:88: warning: 'w1' may be used uninitialized in this function [-Wmaybe-uninitialized]
Use arrays instead of the variables w1,2... and rewrite the helper
function compareFocusChain() to work on iterators allowing to
remove some temporary lists. Also return error messages in a
QByteArray ready for the Q[TRY_]VERIFY2 macros.
Change-Id: I43466921af59521d1faf00b75fe943508418abb3
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>