[Bug c++/93154] can't constrain captured functions to be invocable with lambda arg - unknown "constraints not satisfied"

[db0451 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93154

--- Comment #1 from DB <db0451 at gmail dot com> ---
> preprocessed source:

Ah, whoops. It's not interesting anyway, but maybe I just don't remember how to
do it right... I just passed `-E`.