Regressions on trunk at revision 221749 vs revision 221744

[H.J. Lu x32 -fpic]

New failures:
FAIL: g++.dg/other/default3.C  -std=c++98  (test for errors, line 109)

New passes:
FAIL: gcc.dg/pointer-arith-4.c  (test for errors, line 38)
FAIL: gcc.dg/pointer-arith-4.c  (test for errors, line 39)
FAIL: gcc.dg/pointer-arith-4.c  (test for errors, line 40)
FAIL: gcc.dg/pointer-arith-4.c (test for excess errors)
FAIL: gcc.dg/redecl-1.c implicit (test for warnings, line 97)
FAIL: gcc.dg/redecl-1.c  (test for errors, line 101)
FAIL: gcc.dg/redecl-1.c (test for excess errors)
FAIL: gcc.dg/redecl-1.c  (test for warnings, line 97)