[fpc-pascal] Duplicate RTLs

[Marco van de Voort]

In our previous episode, Sven Barth said:
> exception class), anything involving global variables (either
> implementation or interface) in units that exist both in the library and in
> the program.
> 
> Not to mention RTTI (basically a superset of the "exception handling" case
> mentioned by Jonas).

Also RTTI like class info (not used over typinfo unit) like IS, AS, .InheritsFrom?
IOW Objecttype identity operations.