[fpc-pascal] Case statement for class introspection

[Ryan Joseph]

> On Jan 19, 2022, at 4:15 PM, Michael Van Canneyt <michael at freepascal.org> wrote:
> 
> It's explained in the page that Sven referred to ?
> 
> It's only when you merge into your feature branch from the main branch that you will see an effect.

Still not following this. Do you need me to do a pull-rebase from main and then make my pull request?

Regards,
	Ryan Joseph