set_visibility_for

# File lib/rdoc/code_objects.rb, line 198
    def set_visibility_for(methods, vis, singleton=false)
      count = 0
      @method_list.each do |m|
        if methods.include?(m.name) && m.singleton == singleton
          m.visibility = vis
          count += 1
        end
      end

      return if count == methods.size || singleton

      # perhaps we need to look at attributes

      @attributes.each do |a|
        if methods.include?(a.name)
          a.visibility = vis
          count += 1
        end
      end
    end