Destroy arrays and ARC fields when throwing out of ctors.

Previously we were only handling non-array fields of class type.

Testcases derived from a patch by WenHan Gu.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@174146 91177308-0d34-0410-b5e6-96231b3b80d8
Add PPC A2Q core and BG/Q preprocessor definitions

The a2q core is the variant of the a2 core used on the BG/Q supercomputers.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@174151 91177308-0d34-0410-b5e6-96231b3b80d8