Regressions on trunk at revision 193791 vs revision 193776

[H.J. Lu Intel64 Core 2/i7]

New failures:

New passes:
FAIL: 23_containers/unordered_map/requirements/exception/basic.cc (test for excess errors)
FAIL: 23_containers/vector/bool/modifiers/insert/31370.cc execution test
FAIL: 27_io/basic_ostream/inserters_character/wchar_t/28277-4.cc execution test
FAIL: 27_io/basic_ostream/inserters_character/wchar_t/28277-4.cc execution test
FAIL: 27_io/basic_stringbuf/overflow/char/1.cc execution test
FAIL: gcc.target/i386/avx2-vpmovsxbw-1.c (test for excess errors)
FAIL: gfortran.dg/typebound_proc_17.f03  -O  (test for excess errors)