[Bug c++/92536] [10 Regression] ICE when trying to using deduction guide following unknown type error

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92536

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Thanks. Like PR 92542, this one was also fixed by r278786 aka g:1a291106384cabc