ref: 448a5890b3ec77e741d881f02a199a941275883b
dir: /test/matchbind.myr/
type u = union
`Int int
`Chr char
`Nil
;;
const main = {
var v
v = `Int 11
match v
`Int 127:
-> 42
;;
`Int x:
-> x
;;
`Chr 'a':
-> 4
;;
`Nil:
-> 6
;;
;;
}