Regressions on trunk at revision 230354 vs revision 230351

[H.J. Lu ia32 Core i7]

New failures:

New passes:
FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/collapse-2.c -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 (test for excess errors)
FAIL: libgomp.oacc-c++/../libgomp.oacc-c-c++-common/collapse-2.c -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 (test for excess errors)