[fpc-pascal] FPC 3: disabling automatic AnsiString codepage conversion

[tobiasgiesen at gmail.com]

> You cannot, but you can set DefaultSystemCodePage to CP_UTF8.
> Then no conversions will be done for all ansistrings that contain UTF8.

Fantastic. Many thanks. That fixes my problem entirely (I think).

Sorry, I was not able to come to that conclusion from the existing docs.

Cheers,
Tobias