Rollup merge of #145113 - petrochenkov:lessfinalize, r=lcnr

resolve: Do not finalize shadowed bindings

I.e. do not mark them as used, or non-speculatively loaded, or similar.
Previously they were sometimes finalized during early resolution, causing issues like https://github.com/rust-lang/rust/pull/144793#issuecomment-3168108005.