ices/74447.rs: fixed with no errors

[github-actions]

Issue: rust-lang/rust#74447

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

fn test<const N: usize>() {}

fn wow<'a>() {
    test::<{
        let _: &'a ();
        3
    }>();
}

fn main() {}

=== stdout ===
=== stderr ===
warning: function is never used: `test`
 --> /home/runner/work/glacier/glacier/ices/74447.rs:4:4
  |
4 | fn test<const N: usize>() {}
  |    ^^^^
  |
  = note: `#[warn(dead_code)]` on by default

warning: function is never used: `wow`
 --> /home/runner/work/glacier/glacier/ices/74447.rs:6:4
  |
6 | fn wow<'a>() {
  |    ^^^

warning: 2 warnings emitted

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

[JohnTitor]

This is the same as #615.