Fix non-void function that returned without a return value

QTC_ASSERT(false, action) would print "false" and then take that action
(the return). The other branch of the QTC_ASSERT was a constant false,
so it would never be taken. However, ICC didn't seem happy with it, so I
moved the return to after the checking.

Change-Id: Ia50e75c91fb345e6b21cd5f91df3070544b42d22
Reviewed-by: hjk <qthjk@ovi.com>