ices/71042.rs: fixed with errors

[github-actions]

Issue: rust-lang/rust#71042

#![feature(impl_trait_in_bindings)]
#![allow(incomplete_features)]

fn main() {
    const C: impl Copy = 0;
    match C {
        C | _ => {}
    }
}

=== stdout ===
=== stderr ===
error: opaque types cannot be used in patterns
 --> /home/runner/work/glacier/glacier/ices/71042.rs:7:9
  |
7 |         C | _ => {}
  |         ^

error: aborting due to previous error

==============

[JohnTitor]

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