Issue #2572613 by Malevi4, idebr, pfrenssen, Mile23, RajeevK: Fix 'Drupal.Array.Array.CommaLastItem' coding standard

Issue #2927569 by tstoeckler, amateescu: Various tests do not set values for required field when creating entities

Issue #2614504 by blackra, jibran, mohit_aghera, Yogesh Pawar, larowlan, lokapujya, Munavijayalakshmi, thpoul, andypost, xjm: Values of 'name' & 'email' fields should be NULL when comment has author (uid > 0)

Issue #2776975 by joelpittet, dawehner, tim.plunkett, xjm, pfrenssen: March 3, 2017: Convert core to array syntax coding standards for Drupal 8.3.x RC phase

Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2349819 by amateescu, swentel, Leksat, larowlan, dawehner, Gábor Hojtsy, mpdonadio, benjy, jmuzz, yched, jibran, marthinal, dmsmidt: String field type doesn't consider empty string as empty value

Issue #2511472 by Wim Leers, Fabianx, dawehner: Refactor all usages of drupal_render()/Renderer::render() that break #2450993

Issue #2456705 by dawehner, adamwhite, larowlan, YesCT: Comment views field handlers need to be replaced with field/entity aware handlers

Issue #2454163 by larowlan, geertvd, rteijeiro: Replace comment_username handler with generic views handler