[fpc-pascal] Get variable name at runtime

[Marco van de Voort]

In our previous episode, Mark Morgan Lloyd said:
> >> Unfortunately pascal macro's are rather limited compared to C. I know I know, you could potentially open up a can of worms, but sometimes more control is required.
> > 
> > There is nothing restraining anybody using an external macro processor. It
> > is just that we don't want to support it :-)
> 
> Actually, I'd suggest that there is: the difficulty of integrating an 
> external macro processor with the standard build process (i.e. it's not 
> just another stage in a makefile).

It is. Export all known sources to a new dir for the compiler through the
preprocessor.

> I've had to deal with colleagues in the past who thought it was entirely 
> acceptable to make manual edits to compiler output (typically on Intel 
> blue boxes) before running it through the assembler, and it's very high 
> on my list of Thou Shalt Nots.

General preprocessor usage is on mine. I use preprocessors and
codegenerators all the time, and have no problem whatsoever with it.

What I have a problem is, is to give that formal statement, so that future
development on the compiler will be limited by it in all its gory glory.

IMHO we should simply have a directive that is either cdecl or stdcall
depending on the platform, and kill even the current macro support.