Regressions on trunk at revision 224581 vs revision 224573

[H.J. Lu Intel64 Core i7]

New failures:
FAIL: g++.dg/cpp0x/initlist96.C  -std=c++11 (test for excess errors)
FAIL: g++.dg/cpp0x/initlist96.C  -std=c++14 (test for excess errors)

New passes:
FAIL: gcc.target/i386/noplt-1.c scan-assembler call[ \t]\\*.*foo.*@GOTPCREL\\(%rip\\)
FAIL: gcc.target/i386/noplt-2.c scan-assembler jmp[ \t]\\*.*foo.*@GOTPCREL\\(%rip\\)
FAIL: gcc.target/i386/noplt-3.c scan-assembler call[ \t]\\*.*foo.*@GOTPCREL\\(%rip\\)
FAIL: gcc.target/i386/noplt-4.c scan-assembler jmp[ \t]\\*.*foo.*@GOTPCREL\\(%rip\\)