[Bug c++/105351] [concepts] Constraint checking does correctly match static member attributes

[gawain.bolton at free dot fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105351

--- Comment #4 from Gawain Bolton <gawain.bolton at free dot fr> ---
I am confused as to how the requirement expression be valid and yet not be
evaluated.

This is also not consistent with how the requirement check is done for
functions.

Finally, this also begs the question as to how one could write a requirement to
ensure a class has a static attribute.