ref: f0107d3b7411afbe8e1e8a04b13de3b60a625d04 dir: /test/recgeneric.myr/
use std type o(@a::integral) = union `S @a ;; type x(@k) = struct n : o(x(@k)#) ;; const main = { var test : x(int) std.put("built\n") }