Regressions on 4.5 at revision 182430 vs revision 181999

[H.J. Lu Intel64]

New failures:
FAIL: g++.dg/torture/pr42450.C  -O2 -flto  (test for excess errors)
ERROR: g++.dg/cpp0x/rv-cast3.C: syntax error in target selector "target c++11" for " dg-do 2 run { target c++11 } "
ERROR: g++.dg/cpp0x/rv-cast3.C: syntax error in target selector "target c++11" for " dg-do 2 run { target c++11 } "
ERROR: g++.dg/cpp0x/rv-cast4.C: syntax error in target selector "target c++11" for " dg-do 2 compile { target c++11 } "
ERROR: g++.dg/cpp0x/rv-cast4.C: syntax error in target selector "target c++11" for " dg-do 2 compile { target c++11 } "

New passes:
FAIL: g++.dg/eh/template1.C (test for excess errors)
FAIL: g++.dg/init/array27.C (test for excess errors)
FAIL: g++.old-deja/g++.other/crash2.C  (test for errors, line 5)
WARNING: program timed out.