ref: 3f5b9c674dc0f3e9e43d17acf1b7cfbb409b89d1 dir: /test/fncast.myr/
use std const main = { var fn, envfn var ptr fn = { } envfn = { ptr = ptr } ptr = (fn : byte#) ptr = (envfn : byte#) std.put("ok\n") }