[Bug c++/110523] [14 Regression] ICE in redeclare_class_template, at cp/pt.cc:6391 on json-3.11.2

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110523

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Re-reducing it so it is warning free as the original was warning free.