[Bug c++/93883] missing test for diagnostic: using-declaration may not name enumerator %<%E::%D%>

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93883

--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
I suppose I could but there are thousands of other diagnostics in the testsuite
and nobody's going to change all of it.  Not sure if changing this particular
case makes sense.