clear

# File activesupport/lib/active_support/descendants_tracker.rb, line 20
    def self.clear
      @@direct_descendants.each do |klass, descendants|
        if ActiveSupport::Dependencies.autoloaded?(klass)
          @@direct_descendants.delete(klass)
        else
          descendants.reject! { |v| ActiveSupport::Dependencies.autoloaded?(v) }
        end
      end
    end