[Patch, c* ,ObjC*] handle string objects in format checking.

[Nicola Pero]

> I agree in general terms, as much as possible should be independent -  
> and I've been "gnu-ifying" the NeXT cases and "next-ifying" the gnu  
> ones as much as possible.

Sure.  And the GNU Objective-C Runtime now has a new API which is almost identical
to the new NeXT one.  That means we should be able to simplify things. :-)

> -- being able to compile the Foundation (ObjC*) and CoreFoundation (c*  
> and ObjC*)  headers is pretty (possibly vitally) important for use of  
> FSF gcc on Darwin.

It certainly is (and I strongly support your efforts to get there!), 
but it still doesn't help to include the whole of Foundation/Foundation.h
in testcases ... unless there's really no other way to test something. ;-)

I would personally think it's acceptable to use it temporarily though.

If you're in a hurry to finish the functionality for the release, you could
provide testcases that use Foundation/Foundation.h for now, and replace them
with better ones later on ?

Thanks