ref: 4a1f9034d1e1c0f21a9c677c0b04b61aea3d3121 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") }