ref: 30ae6dbd5eb7c7f8c9c76a32723dd33c5f90978b
dir: /test/matchstruct.myr/
use std type t = struct v1 : int v2 : int v3 : int ;; const main = { var v : t v.v1 = 2 v.v2 = 40 v.v3 = 10 match v [.v1 = x, .v2 = y, .v3 = 10]: -> x + y ;; _: std.die("Wat");; ;; -> 0 }