Regressions on trunk at revision 267502 vs revision 267492

[H.J. Lu (x32)]

New failures:
FAIL: g++.dg/tree-prof/devirt.C scan-tree-dump-times dom3 "folding virtual function call to virtual unsigned int mozPersonalDictionary::_ZThn16" 1

New passes:
FAIL: g++.dg/tree-prof/devirt.C scan-tree-dump-times dom3 "folding virtual function call to virtual unsigned int mozPersonalDictionary::_ZThn16" 3