Method foreignArrayAt

cmd/Tracker.java:136–139

(long v, int idx)

        a[idx] = this.get(val);
    }
    public synchronized long foreignArrayAt(long v, int idx) {
        Object[] a = (Object[])this.get(v);
        return track(a[idx]);
    }
    public synchronized long foreignArrayLen(long v) {
        Object[] a = (Object[])this.get(v);
        return a.length;