Regressions on trunk at revision 170045 vs revision 170039

[H.J. Lu Intel64-profiled]

New failures:
FAIL: g++.dg/template/inherit6.C (test for excess errors)
FAIL: g++.dg/template/inherit6.C (test for excess errors)
FAIL: gcc.dg/guality/vla-2.c  -O3 -fomit-frame-pointer  line 25 sizeof (a) == 6 * sizeof (int)

New passes:
WARNING: program timed out.