Replace `std::io::lazy::Lazy` with `std::cell::LazyCell`?

[frewsxcv]

Could std::io::lazy::Lazy be replaced with std::cell::Lazy? What does the former offer that the latter doesn't already have?

[compiler-errors]

#77154

[frewsxcv]

Oh I'm linking to an old git SHA oops. It's already gone