Function rev_vec

utils/src/randomized_pairing_check.rs:228–232

(v: &[T])

    use std::time::Instant;

    fn rev_vec<T: Clone>(v: &[T]) -> Vec<T> {
        let mut x = v.to_vec();
        x.reverse();
        x
    }

    #[test]
    fn test_pairing_randomize() {