Regressions on trunk at revision 154010 vs revision 154009

[H.J. Lu]

New failures:
FAIL: gcc.c-torture/execute/20050826-1.c compilation,  -O3 -fomit-frame-pointer 
FAIL: gcc.c-torture/execute/920409-1.c compilation,  -O3 -g 
FAIL: gcc.dg/torture/pta-escape-1.c  -O1  (test for excess errors)
FAIL: gcc.dg/torture/pta-escape-1.c  -O2  (test for excess errors)
FAIL: gcc.dg/torture/pta-escape-1.c  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: gcc.dg/torture/pta-escape-1.c  -O3 -g  (test for excess errors)
FAIL: gcc.dg/torture/pta-escape-1.c  -Os  (test for excess errors)
FAIL: gfortran.dg/real_const_2.f90  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: gfortran.dg/scalar_mask_1.f90  -O0  (test for excess errors)

New passes:
FAIL: gcc.c-torture/execute/921112-1.c compilation,  -O3 -fomit-frame-pointer 
FAIL: gfortran.dg/array_memcpy_5.f90  -O0  (test for excess errors)
FAIL: gfortran.dg/char_array_structure_constructor.f90  -O2  (test for excess errors)