else incr = new JEmptyStatement(null, null);
    public Object visitForStatement(JForStatement self,                                  JStatement init,                                  JExpression cond,                                  JStatement incr,                                  JStatement body)     {        blockStart("ForStatement", self);	if (body != null)	    body = (JStatement)body.accept(this);	if (init != null)	    init = (JStatement)init.accept(this);	if (cond != null)	    cond = (JExpression)cond.accept(this);	if (incr != null)	    incr= (JStatement)incr.accept(this);		return new JForStatement(null, init, cond, incr, body, null);    }