LCL: qt: less hints

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46931 4005530d-fff6-0310-9dd1-cebe43e6787f
LCL: qt: fixed compilation

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46932 4005530d-fff6-0310-9dd1-cebe43e6787f