Issue #1898428 by joelpittet, shanethehat, Floydm, gillbates, steinmb, artis, Cottser, gnuget: locale.module - Convert theme_ functions to Twig.
Issue #2012882 by damiankloip, dawehner: Move getDisplaysList() out of View storage class to ViewListController.
Issue #2009018 by InternetDevels: Replace theme() with drupal_render() in filter module.
Issue #2008954 by markie: Replace theme() with drupal_render() in /core/lib.
Issue #2009666 by aaronott, jiff, jeroen12345: Replace theme() with drupal_render() in search module.
Issue #1959062 by patrickd, brad.bulger: Check safe_mode() = Off requirement early.
Issue #2017449 by ParisLiakos: Drupal\Tests\user\Views\Argument\RolesRidTest is in the wrong place.
Issue #2018731 by swentel: Move field_has_data() to Field::hasData().
Issue #1987262 by the_phi, clemens.tolboom, Damien Tournoud, bshaffer: [Installation Error] Symfony: "The service definition 'request' does not exist.".
Issue #1978166 follow-up by tim.plunkett: Fix broken tests due to broken typehint.
Issue #2004408 follow-up by tim.plunkett: Fixed broken tests due to missing use statement.
Issue #1891198 follow-up by tim.plunkett: Fix broken tests due to mis-named yaml file.
Issue #2004408 follow-up by tim.plunkett: Fix tests to account for previous fix.
Issue #2020697 by heddn: Rename Views method add_filter() to addFilter().
Issue #2020693 by heddn: Rename Views method post_render() to postRender().
Issue #2020695 by heddn: Rename Views method summary_join() to summaryJoin().
Issue #2020377 by LinL | xjm: Rename Views method opNotEnds() to opNotEndsWith().
Issue #2020429 by andypost: Fixed Cleanup comment views handlers docs.
Issue #2011104 by tidrif | DmitryDrozdik: Replace drupal_container() with Drupal::service() in the menu & menu_link() modules.
Issue #2011084 by jiff | DmitryDrozdik: Replace drupal_container() with Drupal::service() in the file module.