ref: e23ac2b638d3badf2fbffb14050d3a8034069a24
dir: /test/structasn.myr/
/* 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
}