ref: a95129996beaf2388eda0cc8864c0a4d3628b56a dir: /test/neststruct.myr/
type s1 = struct x : s2 ;; type s2 = struct a : int b : int ;; const main = { var s1 : s1 var s2 : s2 s1.x.a = 1 s1.x.b = 2 s2 = s1.x -> s2.a + s2.b }