Regressions on trunk at revision 191701 vs revision 191694

[H.J. Lu ia32]

New failures:
FAIL: gcc.dg/pch/counter-1.c   -O0  -I. -Dwith_PCH (internal compiler error)
FAIL: gcc.dg/pch/counter-1.c   -O0  -I. -Dwith_PCH (test for excess errors)
FAIL: gcc.dg/pch/counter-1.c  -O0  assembly comparison

New passes: