[fpc-pascal] TP compatibility: procedural type

[Marco van de Voort]

In our previous episode, Anton Shepelev said:
> But this is from the  Language  guide -- a  document
> that  descrbes  the  language in a platform-agnostic
> way....

Then you have a very different TP manual than me. Mine is really only
for the specific 16-bit case, and there is no platform agnostic allowance
how it would work on 32/64-bit in that manual. (or even in different 16-bit
models than implemented, e.g. huge, something they did know, since Turbo C++
has it)