Regressions on trunk at revision 157105 vs revision 157086

[H.J. Lu]

New failures:
FAIL: gcc.dg/990506-0.c (test for excess errors)
FAIL: gcc.dg/990506-0.c reminder message (test for errors, line 6)
FAIL: gcc.dg/cpp/pragma-1.c (test for excess errors)
FAIL: gcc.dg/cpp/pragma-1.c reminder message (test for errors, line 9)
FAIL: gcc.dg/cpp/pragma-2.c (test for excess errors)
FAIL: gcc.dg/cpp/pragma-2.c reminder message (test for errors, line 13)
FAIL: gcc.dg/gomp/atomic-5.c (test for excess errors)
FAIL: gcc.dg/noncompile/20040629-1.c  -O0  (test for excess errors)
FAIL: gcc.dg/noncompile/20040629-1.c  -O1  (test for excess errors)
FAIL: gcc.dg/noncompile/20040629-1.c  -O2  (test for excess errors)
FAIL: gcc.dg/noncompile/20040629-1.c  -O2 -flto  (test for excess errors)
FAIL: gcc.dg/noncompile/20040629-1.c  -O2 -fwhopr  (test for excess errors)
FAIL: gcc.dg/noncompile/20040629-1.c  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: gcc.dg/noncompile/20040629-1.c  -O3 -g  (test for excess errors)
FAIL: gcc.dg/noncompile/20040629-1.c  -Os  (test for excess errors)
FAIL: objc.dg/private-1.m  (test for errors, line 37)
FAIL: objc.dg/private-1.m (test for excess errors)

New passes:
FAIL: 27_io/basic_istream/extractors_other/wchar_t/9318-in.cc (test for excess errors)
FAIL: Thread_Sleep_2 -O3 -findirect-dispatch compilation from source
FAIL: Thread_Wait compilation from source