tests/ui/lint/unused/issue-104397.rs


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// check-pass

#![warn(unused)]
#![deny(warnings)]

struct Inv<'a>(&'a mut &'a ());

trait Trait {}
impl Trait for for<'a> fn(Inv<'a>) {}

fn with_bound()
where
    (for<'a> fn(Inv<'a>)): Trait,
{}

fn main() {
    with_bound();
}