Regressions on trunk at revision 189808 vs revision 189792

[H.J. Lu ia32]

New failures:
FAIL: gcc.dg/pr45570.c (internal compiler error)
FAIL: gcc.dg/pr45570.c (test for excess errors)
FAIL: gcc.dg/pr46585.c (internal compiler error)
FAIL: gcc.dg/pr46585.c (test for excess errors)
FAIL: gcc.dg/pr48144.c (internal compiler error)
FAIL: gcc.dg/pr48144.c (test for excess errors)
FAIL: gcc.dg/pr48235.c (internal compiler error)
FAIL: gcc.dg/pr48235.c (test for excess errors)
FAIL: gcc.dg/pr48442.c (internal compiler error)
FAIL: gcc.dg/pr48442.c (test for excess errors)
FAIL: gcc.dg/pr50205.c (internal compiler error)
FAIL: gcc.dg/pr50205.c (test for excess errors)
FAIL: gcc.dg/pr50340.c (internal compiler error)
FAIL: gcc.dg/pr50340.c (test for excess errors)
FAIL: gcc.dg/pr51557.c (internal compiler error)
FAIL: gcc.dg/pr51557.c (test for excess errors)
FAIL: gcc.target/i386/pr45352-1.c (internal compiler error)
FAIL: gcc.target/i386/pr45352-1.c (test for excess errors)
FAIL: gcc.target/i386/pr45352-2.c (internal compiler error)
FAIL: gcc.target/i386/pr45352-2.c (test for excess errors)
FAIL: gcc.target/i386/pr45352.c (internal compiler error)
FAIL: gcc.target/i386/pr45352.c (test for excess errors)
FAIL: gcc.target/i386/pr45913.c (internal compiler error)
FAIL: gcc.target/i386/pr45913.c (test for excess errors)
FAIL: gcc.target/i386/pr48237.c (internal compiler error)
FAIL: gcc.target/i386/pr48237.c (test for excess errors)

New passes: