src/test/ui/closures/issue-41366.rs

// check-pass

trait T<'x> {
    type V;
}

impl<'g> T<'g> for u32 {
    type V = u16;
}

fn main() {
    (&|_| ()) as &dyn for<'x> Fn(<u32 as T<'x>>::V);
}