Pascal QWord to UInt64

[madorin]

Generator output a type alias like:
{$IFNDEF FPC}
QWord = UInt64;
{$ENDIF}

It's better to use UInt64 instead of QWord and remove this compiler directive.
UInt64 is defined in Embarcadero Object Pascal and also in Free Pascal.

p.s.
And will it be really great to use double space as indents instead of tabs ;)