    # File lib/action_controller/vendor/html-scanner/html/selector.rb, line 795
        def next_selector(statement, values)
          second = Selector.new(statement, values)
          # If there are alternate selectors, we group them in the top selector.
          if alternates = second.instance_variable_get(:@alternates)
            second.instance_variable_set(:@alternates, nil)
            (@alternates ||= []).concat alternates
          end
          second
        end