[fpc-pascal] x86_64-win64

[Peter Vreman]

> To declare conditional defines like this easily:
>
> {$ifdef cpu64}
> TMyInteger = Int64;
> {$else}
> TMyInteger = LongInt;
> {$endif}

You can better use the special type for it directly instead of adding
$ifdef's

  TMyInteger = PtrInt;
  TMyWord = PtrUInt;