ref: 6e2e105c4be18083d58464b8da6a59b0476b96c4
dir: /test/compoundimpl.myr/
use std trait frobable @a = frob : (val : @a -> void) ;; impl frobable int# = frob = {val std.put("intptr,") } ;; impl frobable char# = frob = {val std.put("charptr\n") } ;; generic foo = {x : @a::frobable frob(x) } const main = { var a = 123 var b = 'c' foo(&a) foo(&b) }