ref: 24e4c23a889d9e7cc60e5da2bc9df0ec0f8ab04b dir: /test/fncast.myr/
use std const main = { var fn, envfn var ptr fn = { } envfn = { ptr = ptr } ptr = fn castto(byte#) ptr = envfn castto(byte#) std.put("ok\n") }