load active_support/dependencies/autoload in active_support/rails

actionpack/lib/abstract_controller.rb

 require 'action_pack'
 require 'active_support/rails'
 require 'active_support/concern'
-require 'active_support/dependencies/autoload'
 require 'active_support/core_ext/class/attribute'
 require 'active_support/core_ext/module/attr_internal'
 require 'active_support/core_ext/module/delegation'

actionpack/lib/action_dispatch.rb

@@ -23,7 +23,6 @@
 
 require 'active_support'
 require 'active_support/rails'
-require 'active_support/dependencies/autoload'
 require 'active_support/core_ext/module/attribute_accessors'
 
 require 'action_pack'

activesupport/lib/active_support/rails.rb

@@ -13,3 +13,6 @@
 
 # in?
 require 'active_support/core_ext/object/inclusion'
+
+# Rails own autoload, eager_load, etc.
+require 'active_support/dependencies/autoload'