ref: f16eddc8b5b4c20a4aef509d3b9f69ef83b49b4c
dir: /test/structasn.myr/
use std /* tests block assignment of structs. exits with 42.*/ type pair = struct a : int b : int ;; const main = { var x : pair var y : pair x.a = 12 x.b = 30 y = x -> y.a + y.b }