Lots of new failures in objc testsuite

[Andrew Pinski]

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> : Floating point exception
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> FAIL: objc.dg-struct-layout-encoding-1/t001_main.m (test for excess errors)

This is PR 25348 which I posted a patch
at http://gcc.gnu.org/ml/gcc-patches/2005-12/msg00822.html

I applied the testsuite part before the patch was approved because
it passes on most target currently.  It just fails on targets where
dividing by zero is an signal.

-- pinski