Regressions on master at commit r13-5340 vs commit r13-5330 on Linux/i686

[H.J. Lu]

New failures:

New passes:
FAIL: g++.dg/init/new51.C  -std=c++14 (test for excess errors)
FAIL: g++.dg/init/new51.C  -std=c++17 (test for excess errors)
FAIL: g++.dg/init/new51.C  -std=c++20 (test for excess errors)
FAIL: g++.dg/init/new51.C  -std=c++98 (test for excess errors)