Issue #2141539 by yched, JStanton, InternetDevels, blesss: Rename FieldItemListInterface::filterEmptyValues() to filterEmptyItems().
Issue #1751394 by droplet: Selectors clean-up: locale module.
Issue #1751382 by droplet, Jelle_S: Selectors clean-up: file module.
Issue #1574512 by MariaAlicia, nod_, oresh: Selectors clean-up: block.