Regressions on trunk at revision 234511 vs revision 234504

[H.J. Lu x32 -fpic]

New failures:

New passes:
FAIL: g++.dg/ext/fnname5.C  -std=c++11  scan-assembler .(string|ascii) "foo(.0)?"
FAIL: g++.dg/ext/fnname5.C  -std=c++11  scan-assembler .(string|ascii) "void A::foo\\(int\\)(.0)?"
FAIL: g++.dg/ext/fnname5.C  -std=c++14  scan-assembler .(string|ascii) "foo(.0)?"
FAIL: g++.dg/ext/fnname5.C  -std=c++14  scan-assembler .(string|ascii) "void A::foo\\(int\\)(.0)?"
FAIL: g++.dg/ext/fnname5.C  -std=c++98  scan-assembler .(string|ascii) "foo(.0)?"
FAIL: g++.dg/ext/fnname5.C  -std=c++98  scan-assembler .(string|ascii) "void A::foo\\(int\\)(.0)?"