Issue #3522969: Deprecate BrowserTestBase::getOptions()

Closes #3522969

core/tests/Drupal/Tests/BrowserTestBase.php

@@ -512,8 +512,14 @@ protected function getHttpClient() {
    *
    * @return array
    *   Associative array of option keys and values.
+   *
+   * @deprecated in drupal:11.2.0 and is removed from drupal:12.0.0. There is
+   *   no direct replacement.
+   *
+   * @see https://www.drupal.org/node/3523039
    */
   protected function getOptions($select, ?Element $container = NULL) {
+    @trigger_error(__METHOD__ . 'is deprecated in drupal:11.2.0 and is removed from drupal:12.0.0. There is no direct replacement. See https://www.drupal.org/node/3523039', E_DEPRECATED);
     if (is_string($select)) {
       $select = $this->assertSession()->selectExists($select, $container);
     }