Lazreport, Patch form Aleksey Lagunov:
 1. Fix AV in BeforePrintScript
 2. Fix set Visible:=false in BeforePrintScript for LazReport Dialog forms.



git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@40833 4005530d-fff6-0310-9dd1-cebe43e6787f