Use AD::Reloader.to_cleanup for reloading [#2873 state:resolved]

Signed-off-by: José Valim <jose.valim@gmail.com>

activerecord/lib/active_record/railtie.rb

@@ -69,11 +69,9 @@ module ActiveRecord
     end
 
     initializer "active_record.set_dispatch_hooks", :before => :set_clear_dependencies_hook do |app|
-      unless app.config.cache_classes
-        ActiveSupport.on_load(:active_record) do
-          ActionDispatch::Callbacks.after do
-            ActiveRecord::Base.clear_reloadable_connections!
-          end
+      ActiveSupport.on_load(:active_record) do
+        ActionDispatch::Reloader.to_cleanup do
+          ActiveRecord::Base.clear_reloadable_connections!
         end
       end
     end

railties/lib/rails/application/bootstrap.rb

@@ -51,11 +51,9 @@ module Rails
       end
 
       initializer :set_clear_dependencies_hook do
-        unless config.cache_classes
-          ActionDispatch::Callbacks.after do
-            ActiveSupport::DescendantsTracker.clear
-            ActiveSupport::Dependencies.clear
-          end
+        ActionDispatch::Reloader.to_cleanup do
+          ActiveSupport::DescendantsTracker.clear
+          ActiveSupport::Dependencies.clear
         end
       end