Regressions on trunk at revision 218603 vs revision 218585

[H.J. Lu x32]

New failures:

New passes:
FAIL: g++.dg/cpp/pr64127.C  -std=c++98  (test for errors, line 3)
FAIL: g++.dg/cpp/pr64127.C  -std=c++98  (test for errors, line 6)
FAIL: g++.dg/cpp/pr64127.C  -std=c++98  (test for errors, line 6)
FAIL: g++.dg/cpp/pr64127.C  -std=c++98  (test for warnings, line 3)