edlp_d8/core/modules/comment/tests/modules/comment_empty_title_test/comment_empty_title_test.module

<?php

/**
 * @file
 * Dummy module emptying comment titles to test for appropriate and accessible
 * markup in edge case scenarios where comments have empty titles.
 */

/**
 * Implements hook_preprocess_comment().
 */
function comment_empty_titles_test_preprocess_comment(&$variables) {
  $variables['title'] = '';
}