Regressions on trunk at revision 249089 vs revision 249081

[H.J. Lu x32]

New failures:
FAIL: g++.dg/template/nontype10.C  -std=c++11 (test for excess errors)
FAIL: g++.dg/template/nontype10.C  -std=c++14 (test for excess errors)
FAIL: g++.dg/template/nontype10.C  -std=c++98 (test for excess errors)

New passes: