# File lib/treetop/runtime/syntax_node.rb, line 78
      def inspect_children(indent="")
        return '' unless elements && elements.size > 0
        ":" +
          elements.map do |e|
            begin
              "\n"+e.inspect(indent+"  ")
            rescue  # Defend against inspect not taking a parameter
              "\n"+indent+" "+e.inspect
            end
          end.
          join("")
      end