qwindowstheme.cpp(635): warning C4312: 'reinterpret_cast': conversion from 'int' to 'FakePointer<int> *' of greater size

Change-Id: Ia2b7c14a5f31bd29243302e76105ad97563951b2
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@theqtcompany.com>