Merge pull request #13959 from mlutfy/setMessageError

drupal#63 Drupal8: override setMessage(), because drupal_set_message is deprecated

CRM/Utils/System/Drupal8.php

@@ -628,6 +628,16 @@ class CRM_Utils_System_Drupal8 extends CRM_Utils_System_DrupalBase {
     ];
   }
 
+  /**
+   * @inheritDoc
+   */
+  public function setMessage($message) {
+    // CiviCRM sometimes includes markup in messages (ex: Event Cart)
+    // it needs to be rendered before being displayed.
+    $message = \Drupal\Core\Render\Markup::create($message);
+    \Drupal::messenger()->addMessage($message);
+  }
+
   /**
    * Drupal 8 has a different function to get current path, hence
    * overriding the postURL function