Regressions on native/master at commit r17-816 vs commit r17-812 on Linux/x86_64

[Haochen Jiang via Gcc-regression]

Regressions on master at commit r17-816 vs commit r17-812 on Linux/x86_64
New failures:

New passes:
FAIL: g++.dg/reflect/define_static_array4.C  -std=c++26 (test for excess errors)
FAIL: g++.dg/reflect/define_static_array4.C  -std=c++26 (test for excess errors)