[Bug c++/110608] error on evaluation of concept three_way_comparable on recursive variant

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110608

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I think GCC is correct here ...

GCC is the only compiler which implements the `satisfaction of atomic
constraint not depending on itself` part of the C++ standard (there are a few
open bugs dealing with that but just left open because maybe the C++ standard
will change).