# File lib/ruby2ruby.rb, line 931
  def process_yield(exp)
    args = exp.empty? ? nil : exp.shift
    if args then
      args[0] = :arglist if args.first == :array
      args = process(args)
    end

    # "yield" + (args ? "(#{args})" : "")
    if args then
      "yield(#{args})"
    else
      "yield"
    end
  end