Rollup merge of #145597 - petrochenkov:nolateset, r=b-naber

resolve: Remove `ScopeSet::Late`

It's better to decouple the late/early stage from scope set, because in rust-lang/rust#144131 (comment) we'll need the stage for `ScopeSet::Module` as well.

See individual commits for the refactoring details.
r? ``@b-naber``

Author: jhpratt