Regressions on trunk at revision 253223 vs revision 253199

[H.J. Lu ia32 Core i7]

New failures:

New passes:
FAIL: gfortran.dg/gomp/associate1.f90   -O  (test for excess errors)
FAIL: gfortran.dg/predcom-1.f   -O  (test for excess errors)
FAIL: gfortran.dg/unconstrained_commons.f   -O  (test for excess errors)