Regressions on trunk at revision 190142 vs revision 190136

[H.J. Lu ia32]

New failures:

New passes:
FAIL: 23_containers/map/element_access/2.cc (test for excess errors)
FAIL: gfortran.dg/namelist_40.f90  -Os  (test for excess errors)
FAIL: gfortran.dg/namelist_71.f90  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  (test for excess errors)
FAIL: gfortran.dg/pr22491.f  -O2  (test for excess errors)
FAIL: gfortran.dg/substr_4.f  -O3 -fomit-frame-pointer -funroll-loops  (test for excess errors)
FAIL: gfortran.dg/unformatted_subrecord_1.f90  -O3 -fomit-frame-pointer  (test for excess errors)