Regressions on trunk at revision 189804 vs revision 189803

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

New failures:
FAIL: gcc.dg/pr45352-3.c (internal compiler error)
FAIL: gcc.dg/pr45352-3.c (test for excess errors)
FAIL: gcc.dg/pr46521.c (internal compiler error)
FAIL: gcc.dg/pr46521.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/pr45913.c (internal compiler error)
FAIL: gcc.target/i386/pr45913.c (test for excess errors)

New passes:
FAIL: gcc.dg/pr45570.c (internal compiler error)
FAIL: gcc.dg/pr45570.c (test for excess errors)
FAIL: gcc.dg/pr46522.c (internal compiler error)
FAIL: gcc.dg/pr46522.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)