Regressions on 4.5 at revision 164827 vs revision 164548

[H.J. Lu ia64]

New failures:
FAIL: 22_locale/time_get/get_year/wchar_t/5.cc (test for excess errors)
FAIL: g++.old-deja/g++.pt/friend23.C  (test for errors, line 7)
FAIL: g++.old-deja/g++.pt/friend23.C  (test for warnings, line 3)
FAIL: g++.old-deja/g++.pt/friend23.C (test for excess errors)
FAIL: gcc.c-torture/compile/20030110-1.c  -O1  (test for excess errors)

New passes:
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c compilation,  -O0 
FAIL: gfortran.dg/widechar_IO_3.f90  -O3 -fomit-frame-pointer -funroll-loops  (test for excess errors)