ref: 1a1892e5a47ac3c1ab1b1944ee1ee11fc3d1e3c8 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") }