fun do_stuff(v) {
    var s = v + v;
    print s;
}

fun blah() {
    var c = "ha" + "ha";

    for(var i = 0; i < 100; i = i + 1) {
        var d = "ha" + num2str(i);
        do_stuff(d);
    }

    return "hiii";
}

var a = blah();

a = "updated";
// GC here.
print a;