[Bug libstdc++/82745] Fails to warn on narrowing conversion by std::forward (e.g. when calling make_unique)

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82745

--- Comment #10 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This is still the same known problem already described in PR 80472 and PR
58876.