load_deprecated_tasks

# File railties/lib/rails/plugin.rb, line 47
    def load_deprecated_tasks
      tasks = Dir["#{root}/{tasks,rails/tasks}/**/*.rake"].sort
      if tasks.any?
        ActiveSupport::Deprecation.warn "Rake tasks in #{tasks.to_sentence} are deprecated. Use lib/tasks instead"
        tasks.each { |ext| load(ext) }
      end
    end