No we should not support enum types derived from strings

[Adam D. Ruppe]

On Friday, 7 May 2021 at 15:25:30 UTC, Andrei Alexandrescu wrote:
> Enums derived from strings should not be supported as strings 
> in the standard library.

I don't think the stdlib should special case much of anything.

Special casing enums is a mistake. If the user wants it treated 
as a string, they can cast it to a string.

Special casing static arrays is a mistake. The user can just 
slice it out the outside.

Special casing alias this is a mistake. The user can pass what 
they meant to pass.

The phobos templates should work like all other templates - on 
the exact type passed. Other functions work with the normal 
overloading and implicit conversion rules.

Kill all the special cases!