run_after_filters

# File actionpack/lib/action_controller/filters.rb, line 652
        def run_after_filters(chain, index)
          seen_after_filter = false

          while chain[index]
            filter, index = chain[index], index
            break unless filter # end of call chain reached

            case filter
            when AfterFilter
              seen_after_filter = true
              filter.call(self)  # invoke after filter
            else
              # implementation error or someone has mucked with the filter chain
              raise ActionControllerError, "filter #{filter.inspect} was in the wrong place!" if seen_after_filter
            end

            index = index.next
          end

          index.next
        end