/*
  * @see com.ibm.wala.ipa.callgraph.impl.BasicCallGraph.NodeImpl#removeTarget(com.ibm.wala.ipa.callgraph.CGNode)
  */
 public void removeTarget(CGNode target) {
   allTargets.remove(getCallGraph().getNumber(target));
   for (IntIterator it = targets.safeIterateIndices(); it.hasNext(); ) {
     int pc = it.next();
     Object value = targets.get(pc);
     if (value instanceof CGNode) {
       if (value.equals(target)) {
         targets.remove(pc);
       }
     } else {
       MutableIntSet s = (MutableIntSet) value;
       int n = getCallGraph().getNumber(target);
       if (s.size() > 2) {
         s.remove(n);
       } else {
         assert s.size() == 2;
         if (s.contains(n)) {
           s.remove(n);
           int i = s.intIterator().next();
           targets.set(pc, getCallGraph().getNode(i));
         }
       }
     }
   }
 }