var f;
var g;

{
  var local = "local";
  fun f_() {
    print local;
    local = "after f";
    print local;
  }
  f = f_;

  fun g_() {
    print local;
    local = "after g";
    print local;
  }
  g = g_;
}

f();
// out: local
// out: after f

g();
// out: after f
// out: after g