AFAIK, the initial import was `Unqual`, and I *think* it was renamed to `_Unqual` to avoid any potential naming conflicts with `std.trait`'s `Unqual` (what with 313 and 314). From there, I think `_Unconst` was simply sticking to the "prior convention".

Or I could just be completely mistaken :/

In any case, @MartinNowak : What not just make these scoped imports? This should help limit the import bloat you were talking about.