Initialize the configuration with a value

This will fix the failures fixed by
41488adbb8
and keep this new option that is semi-private
outside of the generated configurations

railties/lib/rails/application/configuration.rb

@@ -16,7 +16,7 @@ module Rails
                     :railties_order, :relative_url_root, :secret_key_base, :secret_token,
                     :ssl_options, :public_file_server,
                     :session_options, :time_zone, :reload_classes_only_on_change,
-                    :beginning_of_week, :filter_redirect, :x
+                    :beginning_of_week, :filter_redirect, :x, :enable_dependency_loading
 
       attr_writer :log_level
       attr_reader :encoding, :api_only, :static_cache_control
@@ -54,6 +54,7 @@ module Rails
         @api_only                        = false
         @debug_exception_response_format = nil
         @x                               = Custom.new
+        @enable_dependency_loading       = false
       end
 
       def static_cache_control=(value)

railties/lib/rails/generators/rails/app/templates/config/environments/development.rb.tt

@@ -57,7 +57,4 @@ Rails.application.configure do
   # Use an evented file watcher to asynchronously detect changes in source code,
   # routes, locales, etc. This feature depends on the listen gem.
   <%= '# ' unless depend_on_listen? %>config.file_watcher = ActiveSupport::EventedFileUpdateChecker
-
-  # Enable the autoload loading behavior even if the application is eager loaded
-  config.enable_dependency_loading = false
 end

railties/lib/rails/generators/rails/app/templates/config/environments/production.rb.tt

@@ -91,7 +91,4 @@ Rails.application.configure do
   # Do not dump schema after migrations.
   config.active_record.dump_schema_after_migration = false
   <%- end -%>
-
-  # Enable the autoload loading behavior even if the application is eager loaded
-  config.enable_dependency_loading = false
 end

railties/lib/rails/generators/rails/app/templates/config/environments/test.rb.tt

@@ -41,7 +41,4 @@ Rails.application.configure do
 
   # Raises error for missing translations
   # config.action_view.raise_on_missing_translations = true
-
-  # Enable the autoload loading behavior even if the application is eager loaded
-  config.enable_dependency_loading = false
 end