watch_namespaces

# File activesupport/lib/active_support/dependencies.rb, line 131
      def watch_namespaces(namespaces)
        watching = []
        namespaces.map do |namespace|
          module_name = Dependencies.to_constant_name(namespace)
          original_constants = Dependencies.qualified_const_defined?(module_name) ?
            Inflector.constantize(module_name).local_constant_names : []

          watching << module_name
          @stack[module_name] << original_constants
        end
        @watching << watching
      end