ices/104685.rs: fixed with no errors

[github-actions]

Issue: rust-lang/rust#104685

#![feature(extern_types)]

extern "C" {
    pub type ExternType;
}

extern "C" {
    pub static EXTERN: ExternType;
}

pub static EMPTY: () = unsafe {
    &EXTERN;
};

fn main() {}

=== stdout ===
=== stderr ===
warning: unused borrow that must be used
  --> /home/runner/work/glacier/glacier/ices/104685.rs:12:5
   |
12 |     &EXTERN;
   |     ^^^^^^^ the borrow produces a value
   |
   = note: `#[warn(unused_must_use)]` on by default
help: use `let _ = ...` to ignore the resulting value
   |
12 |     let _ = &EXTERN;
   |     +++++++

warning: 1 warning emitted

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