Regressions on trunk at revision 190109 vs revision 190105

[H.J. Lu Intel64 Core 2/i7]

New failures:
FAIL: gfortran.dg/backspace_5.f  -O0  (test for excess errors)
FAIL: gfortran.dg/endfile_2.f90  -O0  (test for excess errors)
FAIL: gfortran.dg/loc_2.f90  -O2  (test for excess errors)
FAIL: gfortran.dg/mapping_1.f90  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  (test for excess errors)
FAIL: gfortran.dg/nested_array_constructor_3.f90  -O3 -g  (test for excess errors)
FAIL: gfortran.dg/overload_2.f90  -O  (test for excess errors)
FAIL: gfortran.dg/pr17615.f90  -O  (test for excess errors)
FAIL: gfortran.dg/pr43866.f90  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: gfortran.dg/proc_ptr_25.f90  -O0  (test for excess errors)
FAIL: gfortran.dg/reshape_empty_1.f03  -Os  (test for excess errors)
FAIL: gfortran.dg/save_2.f90  -O3 -fomit-frame-pointer -funroll-loops  (test for excess errors)
FAIL: gfortran.dg/stfunc_1.f90  -O2  (test for excess errors)

New passes:
FAIL: gfortran.dg/PR19872.f  -O3 -fomit-frame-pointer -funroll-loops  (test for excess errors)
FAIL: gfortran.dg/goto_1.f  -O3 -g  (test for excess errors)
FAIL: gfortran.dg/product_init_expr.f03  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: gfortran.dg/random_4.f90  -O2  (test for excess errors)
FAIL: gfortran.dg/streamio_12.f90  -O3 -g  (test for excess errors)
FAIL: gfortran.dg/streamio_15.f90  -O0  (test for excess errors)
FAIL: gfortran.dg/test_common_binding_labels_2_main.f03  -O  (test for excess errors)