ices/99348.rs: fixed with errors

[github-actions]

Issue: rust-lang/rust#99348

#![feature(type_alias_impl_trait)]

struct Concrete;

type Tait = impl Sized;

impl Foo for Concrete {
    type Item = Concrete;
}

impl Bar for Concrete {
    type Other = Tait;
}

trait Foo {
    type Item: Bar<Other = Self>;
}

trait Bar {
    type Other;
}

fn tait() -> Tait {}

pub fn main() {}

=== stdout ===
=== stderr ===
error[E0308]: mismatched types
 --> /home/runner/work/glacier/glacier/ices/99348.rs:8:17
  |
5 | type Tait = impl Sized;
  |             ---------- the expected opaque type
...
8 |     type Item = Concrete;
  |                 ^^^^^^^^ types differ
  |
  = note: expected opaque type `Tait`
                  found struct `Concrete`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0308`.
==============