We can't use revisions in uncreatable types because QTBUG-40043
is affecting our API.

Change-Id: Id9bf18fe8cfda590079ed72d7ca8b1c298aff90e
Reviewed-by: Peter Varga <pvarga@inf.u-szeged.hu>
Reviewed-by: Michael Brüning <michael.bruning@theqtcompany.com>
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>