QNX: fix QQnxWindow

To ensure the correct event order, only set the geometry() once the window is
actually made visible.

We also need to post the expose event even for child windows (i.e.,
windows which have a parent).

Change-Id: Ief80778bc3202352bd194e4b3ba655f619350b1a
Reviewed-by: Kevin Krammer <kevin.krammer@kdab.com>
Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>
Use QFINDTESTDATA on tst_QStyle instead of SRCDIR

Update the test code to match the current Qt idiom for finding test data (and
fix it on QNX).

Change-Id: I63e7c97b717722e4e6859a12f329d56b26584ce6
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Unix: fix tst_QFile when run as root

Because tests are usually run as root on some setups, it does not
make sense to test for the right permissions of a readonly file.

Change-Id: I484f88722d3a9ce7123edc0fb57acae528fa194e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>