[PATCH] Fix 66 new objc failures

[Andrew Pinski]

> 
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> > With your recent patch, GCC HEAD has some regression test failures, 
> > which used to pass.  There are 66 new failures, and 20
> > failures that existed before and after that patch; 0 failures
> > have been fixed.
> 
> These are all caused by Zack's patches but really it is a Objective-C front-end issue
> not saying a couple of decls are always should be marked as referenced.
> Here is a patch which fixes all of these new regressions.
> 
> OK? Built Objective-C and these regressions were fixed on powerpc-apple-darwin.

I applied this after getting approval from Richard Henderson.

Thanks,
Andrew Pinski


> 
> Thanks,
> Andrew Pinski
> apinski@apple.com
> 
> ChangeLog:
> 	* objc/objc-act.c (build_module_descriptor): Mark UOBJC_MODULES_decl as
> 	always referenced.
> 	(synth_forward_declarations): Likewise for UOBJC_CLASS_decl and
> 	UOBJC_METACLASS_decl.