Add rules for ObjC files

[Adam Fedor]

Klee Dienes wrote:
> I'm not sure if this is something you want to hassle with at the  
> moment, or if you'd prefer to let it wait as a modification once a  
> working version of the Objective-C patches are successfully committed.
> 
> But just as a heads-up, I should mention that in more recent versions  
> of our GDB, we've folded in all of the Objective-C support directly  
> into c-exp.y, and removed objc-exp.y as a file entirely.  Most of  
> objc-exp.y was always just an out-of-date copy of c-exp.y, anyway;  
> moving the (rather small) changes into c-exp.y directly not only  
> allowed us to track changes to the C parser much more smoothly, it  
> should also allow for much better Objective-C++ support.
> 

Good point. On second though, I think I will withdraw this patch for 
now.  I'll work on getting the other changes in, and by that time I 
might get around to looking at the most recent Apple changes and maybe 
I'll be be able to convince the gdb gods to switch directly to using 
Objective-C in c-exp.y


-- 
Adam Fedor, Digital Optics Corp.      | I'm glad I hate spinach, because
http://www.doc.com                    | if I didn't, I'd eat it, and you
                                       | know how I hate the stuff.