Regressions on trunk at revision 182386 vs revision 182371

[Kirill Yukhin [Intel64 Core i7 AVX]]

New failures:

New passes:
FAIL: g++.dg/template/sfinae21.C -std=c++11 (test for excess errors)
FAIL: gcc.dg/tree-ssa/vrp47.c scan-tree-dump-times dom1 "x[^ ]* & y" 1
FAIL: gcc.dg/tree-ssa/vrp47.c scan-tree-dump-times dom1 "x[^ ]* & y" 1