ref: ebeb642003c6fdbf331968cff9d2e3d769fd6b02
dir: /test/gtrait.myr/
use std trait comparable @a = cmp : (a : @a, b : @a -> std.order) ;; impl comparable @a :: numeric @a = cmp = {a, b -> std.numcmp(a, b) } ;; const main = { std.put("{}", cmp(1, 2)) }