src/test/ui/const-generics/const-arg-type-arg-misordered.rs

#![feature(const_generics)]
//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash

type Array<T, const N: usize> = [T; N];

fn foo<const N: usize>() -> Array<N, ()> { //~ ERROR constant provided when a type was expected
    unimplemented!()
}

fn main() {}