Regressions on trunk at revision 202153 vs revision 202145

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

New failures:

New passes:
FAIL: g++.dg/ipa/devirt-11.C -std=gnu++11 (test for excess errors)
FAIL: g++.dg/ipa/devirt-11.C -std=gnu++11 (test for excess errors)
FAIL: g++.dg/ipa/devirt-11.C -std=gnu++98 (test for excess errors)
FAIL: g++.dg/ipa/devirt-11.C -std=gnu++98 (test for excess errors)