permit returning from files
permit returning from files

this allows skipping an entire feature file if a condition is not
fulfilled, without putting the whole body inside a conditional.

Change-Id: I84fe9c94dda58c794fb52c3f163b40563b0db30a
Reviewed-by: Joerg Bornemann <47777b9406dbddd02a3fdca8341789a013805a11@digia.com>
Reviewed-by: Oswald Buddenhagen <6a8868beda3e139b5ac22b2534a23d3e6ba81819@digia.com>
(cherry picked from qtbase/525eb337670f61078383c20ad9be274dcf2d0928)

mer-qt/qttools,mer-qt/qttools,mer-qt/qttools,mer-qt/qttools,mer-qt/qttools,mer-qt/qttools