code: Node createGetProps(Node receiver, String firstPropName, String... otherPropNames) {
      Node result = createGetProp(receiver, firstPropName);
      for (String propertyName : otherPropNames) {
        result = createGetProp(result, propertyName);
      }
      return result;
    }
docs: Creates a tree of nodes representing `receiver.name1.name2.etc`.