Revert admin_menu_tree() to public function

The update in 7.x-3.0-rc7 caused admin_menu_tree to become a private function.

The Admin Menu Source module ( https://www.drupal.org/project/admin_menu_source → ) calls admin_menu_tree in hook_admin_menu_output_alter() to build menus for different roles. By making the function private, admin menu can no longer load for any role with a customized admin menu.

Please review the attached patch which reverts admin_menu_tree to be a public function again. Thanks.

Thanks, it works well!

Patch on #2 works, thank you. Please apply it.