ref: 543887f46d1d7796bd8f1e6d329401197b19ec56
dir: /test/outparam-sl.myr/
use std
/* should assign a slice through an out param, returning exiting with 2 */
const arr = [1,2,3,4]
const f = {out
*out = arr[1:3]
}
const main = {
var v
f(&v)
-> v[0]
}