ices/109281.rs: fixed with errors

[github-actions]

Issue: rust-lang/rust#109281

#![feature(type_alias_impl_trait)]
struct S;
type ReturnType<'a> = impl Eq + 'a;
impl std::ops::Deref for S {
    type Target = dyn Fn(&()) -> ReturnType;
    fn deref() -> &'static Self::Target {}
}

fn main() {}

=== stdout ===
=== stderr ===
error[E0308]: mismatched types
 --> /home/runner/work/glacier/glacier/ices/109281.rs:6:19
  |
3 | type ReturnType<'a> = impl Eq + 'a;
  |                       ------------ the expected opaque type
...
6 |     fn deref() -> &'static Self::Target {}
  |        -----      ^^^^^^^^^^^^^^^^^^^^^ expected `&dyn Fn(&()) -> ReturnType<'_>`, found `()`
  |        |
  |        implicitly returns `()` as its body has no tail or `return` expression
  |
  = note: expected reference `&'static (dyn for<'a> Fn(&'a ()) -> ReturnType<'_> + 'static)`
             found unit type `()`

error[E0186]: method `deref` has a `&self` declaration in the trait, but not in the impl
 --> /home/runner/work/glacier/glacier/ices/109281.rs:6:5
  |
6 |     fn deref() -> &'static Self::Target {}
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `&self` in impl
  |
  = note: `deref` from trait: `fn(&Self) -> &<Self as Deref>::Target`

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0186, E0308.
For more information about an error, try `rustc --explain E0186`.
==============