[Patch libobjc] Fix Darwin32 PPC struct size foo.

[Nicola Pero]

> The only remaining failure on both ppc/intel is
>
> FAIL: objc.dg/exceptions-2.m -fnext-runtime (test for excess errors)
>
> with -m64.

Could you provide more information on the problem ?  ie, what does objc.log say ? :-)

I'm sometime frustrated by seeing errors reported on the automated test
environments (eg, the recent failures of ObjC fast enumeration reported at
runtime on gnu/linux suse 64-bit) without being able to see any minimal
information on what the error actually is.

Are there any plans to encourage testers to make testsuite log files automatically
available with the test results ? :-)

Thanks