[Bug c++/90449] No way to turn off warning about inaccessible base

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90449

--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
(In reply to Marek Polacek from comment #3)
> The testcase in the godbolt link even ICEs with current trunk.  I'll open a
> separate PR.

PR90764