Following the introduction of QKeyCombination, reduce the number
of warnings raised by the test. Drive-by, remove some pointless
math like Qt::SHIFT+0, which does not make any sense and would
actually fail to compile (shortly).
Refactoring the test to fully use QKeyCombination (instead of
ints) is left as a future exercise; some QKeyCombination->int
warnings are still around.
Change-Id: If825bc4c369986623447927bb11493c4f58b544f
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
fec51be209