Regressions on trunk at revision 206000 vs revision 205993

[H.J. Lu Intel64 Core i7]

New failures:
FAIL: 17_intro/headers/c++200x/stdc++.cc (test for excess errors)
FAIL: 17_intro/headers/c++200x/stdc++_multiple_inclusion.cc (test for excess errors)

New passes:
FAIL: gcc.target/i386/pr43662.c (internal compiler error)
FAIL: gcc.target/i386/pr43662.c (test for excess errors)
FAIL: gcc.target/i386/pr43869.c (internal compiler error)
FAIL: gcc.target/i386/pr43869.c (test for excess errors)
FAIL: gcc.target/i386/pr57003.c (internal compiler error)
FAIL: gcc.target/i386/pr57003.c (test for excess errors)
FAIL: gcc.target/i386/pr57756.c  (test for errors, line 14)
FAIL: gcc.target/i386/pr57756.c  (test for errors, line 14)
FAIL: gcc.target/i386/pr57756.c  (test for errors, line 6)
FAIL: gcc.target/i386/pr57756.c  (test for errors, line 6)
FAIL: gcc.target/x86_64/abi/callabi/func-1.c (test for excess errors)
FAIL: gcc.target/x86_64/abi/callabi/func-2a.c (test for excess errors)
FAIL: gcc.target/x86_64/abi/callabi/func-indirect-2a.c (internal compiler error)
FAIL: gcc.target/x86_64/abi/callabi/func-indirect-2a.c (test for excess errors)
FAIL: gcc.target/x86_64/abi/callabi/func-indirect.c (test for excess errors)
FAIL: gcc.target/x86_64/abi/callabi/vaarg-1.c (test for excess errors)
FAIL: gcc.target/x86_64/abi/callabi/vaarg-2.c (test for excess errors)
FAIL: gcc.target/x86_64/abi/callabi/vaarg-3.c (test for excess errors)
FAIL: gcc.target/x86_64/abi/callabi/vaarg-4a.c (test for excess errors)
FAIL: gcc.target/x86_64/abi/callabi/vaarg-5a.c (test for excess errors)