1 #![feature(existential_type)]
7 // test that unused generic parameters are ok
8 existential type Two<T, U>: Debug;
10 fn one<T: Debug>(t: T) -> Two<T, T> {
11 //~^ defining existential type use restricts existential type
15 fn two<T: Debug, U>(t: T, _: U) -> Two<T, U> {