ref: b1e6a04201002d4dc9dbd2d5ee410d30ec5a3cac dir: /test/structarray.myr/
type t = struct a : int[42] ;; const main = { var v : t v.a[0] = 12 v.a[1] = 20 -> 2*v.a[0] + v.a[1] }