Undefined function 'user_role_names' in Drupal 11

Problem/Motivation

The user_role_names function was removed in Drupal 11, see: https://www.drupal.org/project/drupal/issues/3432868 📌 Remove deprecated code from user module Fixed and https://www.drupal.org/node/3349759 → .

The function is still used in both views filters:

https://git.drupalcode.org/project/views_published_or_roles/-/blob/8.x-1...

https://git.drupalcode.org/project/views_published_or_roles/-/blob/8.x-1...

We need to replace it, otherwise the modules it not fully compatible with D11.

Steps to reproduce

Proposed resolution

Replace it with Role::loadMultiple()

Remaining tasks

User interface changes

API changes

Data model changes