// run-pass
pub trait Foo {
    fn method1() {}
    fn method2();
}

struct Slice<'a, T: 'a>(#[allow(unused_tuple_struct_fields)] &'a [T]);

impl<'a, T: 'a> Foo for Slice<'a, T> {
    fn method2() {
        <Self as Foo>::method1();
    }
}

fn main() {
    <Slice<()> as Foo>::method2();
}