ref: d7f35e49d14644bcb7a1327a1fdb8cdb8f55dac3 dir: /test/slice.myr/
const main = { var a : int[3] var s s = a[:] s[0] = 3 s[1] = 4 s[2] = s[0] + s[1] + s.len -> s[2] }