Regressions on trunk at revision 248429 vs revision 248404

[Intel Automatic Testing System [ia32 Core AVX2 PIC]]

New failures:

New passes:
FAIL: g++.dg/ext/integer-pack2.C  -std=gnu++11 (test for excess errors)
FAIL: g++.dg/ext/integer-pack2.C  -std=gnu++14 (test for excess errors)