Issue #2299699 by lokeoke | jhodgdon: Some classes need @ingroup added to them.

core/includes/common.inc

core/lib/Drupal/Core/Form/FormBase.php

core/lib/Drupal/Core/Form/FormBuilder.php

core/lib/Drupal/Core/Form/FormInterface.php

core/lib/Drupal/Core/Queue/Batch.php

core/lib/Drupal/Core/Queue/BatchMemory.php

core/lib/Drupal/Core/Queue/DatabaseQueue.php

core/lib/Drupal/Core/Queue/Memory.php

core/lib/Drupal/Core/Queue/QueueInterface.php

core/lib/Drupal/Core/Queue/ReliableQueueInterface.php

core/modules/file/file.module