[Bug c++/99387] ICE when mixing CNTTP with deduction guides

[omer.rosler at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99387

--- Comment #1 from Omer Rosler <omer.rosler at gmail dot com> ---
Simplified example:

https://godbolt.org/z/b814o7