_node_types_build() not translating database "node" module type

When creating a multi-language drupal site, node "name", "description", "title_label" and "body_label" do not get translated when they are coming from the database.

As an example : When accessing "Create content" in other languages you always get the same untranslated text from the database for "page" and "story".

The problem is existing in the "node.module" of version 5.x and 6.x, it could be corrected easily by modifying the function "_node_types_build()".

Replacing this section :

    if (!isset($_node_types[$type_object->type]) || $type_object->modified) {
      $_node_types[$type_object->type] = $type_object;
      $_node_names[$type_object->type] = $type_object->name;

      if ($type_object->type != $type_object->orig_type) {
        unset($_node_types[$type_object->orig_type]);
        unset($_node_names[$type_object->orig_type]);
      }
    }

With something like this :

    if (!isset($_node_types[$type_object->type]) || $type_object->modified) {
//Begining of modification for allowing translation from database node object.
      $type_object->name = t($type_object->name);
      $type_object->description = t($type_object->description);
      $type_object->title_label = t($type_object->title_label);
      $type_object->body_label = t($type_object->body_label);
//End of modification
      $_node_types[$type_object->type] = $type_object;
      $_node_names[$type_object->type] = $type_object->name;

      if ($type_object->type != $type_object->orig_type) {
        unset($_node_types[$type_object->orig_type]);
        unset($_node_names[$type_object->orig_type]);
      }
    }