expected (REXML::Validation::Interleave)

    # File temp/validation/relaxng.rb, line 529
          def expected
            #puts "IN CHOICE EXPECTED"
            #puts "EVENTS = #{@events.inspect}"
            return [@events[@current]] if @events[@current]
            return @choices[@choice..-1].collect do |x|
              if x[0].kind_of? State
                x[0].expected
              else
                x[0]
              end
            end.flatten
          end