Regressions on trunk at revision 201872 vs revision 201871

[H.J. Lu ia32]

New failures:
FAIL: 22_locale/time_get/get_date/wchar_t/wrapped_env.cc (test for excess errors)
FAIL: 23_containers/vector/debug/assign4_neg.cc (test for excess errors)
FAIL: 27_io/basic_stringbuf/sputbackc/char/1.cc (test for excess errors)
FAIL: tr1/5_numerical_facilities/special_functions/13_ellint_2/check_nan.cc (test for excess errors)

New passes:
FAIL: 22_locale/money_put/put/char/1.cc (test for excess errors)
FAIL: tr1/6_containers/unordered_multiset/insert/multiset_single.cc (test for excess errors)