Regressions on 4.5 at revision 185168 vs revision 184569

[H.J. Lu Intel64]

New failures:
FAIL: g++.dg/debug/debug6.C -gxcoff+3 (test for excess errors)
FAIL: g++.dg/debug/pr29906.C -gxcoff1 (test for excess errors)
FAIL: g++.dg/torture/pr34953.C  -O0  (test for excess errors)
FAIL: g++.old-deja/g++.other/access3.C (test for excess errors)

New passes:
FAIL: g++.dg/init/ctor4.C (test for excess errors)
FAIL: g++.dg/other/crash-7.C (test for excess errors)
FAIL: g++.dg/parse/error36.C  (test for errors, line 22)
FAIL: g++.dg/torture/pr51344.C  -O0  (test for excess errors)
FAIL: g++.dg/torture/pr51344.C  -O1  (test for excess errors)
FAIL: g++.dg/torture/pr51344.C  -O2  (test for excess errors)
FAIL: g++.dg/torture/pr51344.C  -O2 -flto  (test for excess errors)
FAIL: g++.dg/torture/pr51344.C  -O2 -fwhopr  (test for excess errors)
FAIL: g++.dg/torture/pr51344.C  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: g++.dg/torture/pr51344.C  -O3 -g  (test for excess errors)
FAIL: g++.dg/torture/pr51344.C  -Os  (test for excess errors)
FAIL: g++.old-deja/g++.benjamin/friend02.C (test for excess errors)
FAIL: g++.old-deja/g++.bugs/900322_01.C  (test for errors, line 37)