Regressions on trunk at revision 206064 vs revision 206061

[H.J. Lu Intel64 Core i7]

New failures:
FAIL: c-c++-common/asan/clone-test-1.c  -O0  execution test

New passes:
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)