UITypes: fix SizeOf() of sets for LCL compatibility
I actually missed one incompatibility: the SizeOf sets / $PACKSET
The incompatibility was there even before in TMsgDlgButtons but that one didn't cause any trouble so nobody noticed.
I actually missed one incompatibility: the SizeOf sets / $PACKSET
The incompatibility was there even before in TMsgDlgButtons but that one didn't cause any trouble so nobody noticed.