autoloaded?

# File activesupport/lib/active_support/dependencies.rb, line 598
    def autoloaded?(desc)
      # No name => anonymous module.
      return false if desc.is_a?(Module) && desc.anonymous?
      name = to_constant_name desc
      return false unless qualified_const_defined? name
      return autoloaded_constants.include?(name)
    end