[patch] fix 64-bit eh for objc

[Andrew Pinski]

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> While wandering through test results and differences I noticed these. 
> IIRC Mike fixed one and Fariborz fixed the other.
> 
> Tested on ppc64-darwin and x86_64-darwin, no regressions and 
> exceptions.exp now passes cleanly for all architectures.
> 
> OK?
> 
> -eric
> 
> 2006-09-18  Eric Christopher  <echristo@apple.com>
> 	    Mike Stump  <mrs@apple.com>
> 	    Fariborz Jahanian <fjahanian@apple.com>
> 
> 	* objc-act.c (JBLEN): Add 64-bit definitions.
> 
I think this will break any target that does not define TARGET_64BIT.

-- Pinski