[JIT] Fixed exception throwing for PPC JIT.  Now division by zero errors don't crash the system.
[JIT] Fixed exception throwing for PPC JIT.  Now division by zero errors don't
crash the system.

git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@31091 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot