Issue #2866513 by michielnugter, jonathan1055, mpdonadio, Jo Fitzgerald, Lendude, dawehner, Wim Leers: Convert web tests to browser tests for comment module

(cherry picked from commit 73bba855)

Issue #2854529 by alexpott, xjm, klausi, Chi, Mixologic: Fix Drupal.Scope.MethodScope - all methods should have scopes

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 #2719695 by alexpott, Mile23: Fix 'Drupal.Classes.ClassDeclaration.CloseBraceAfterBody' coding standard

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

Issue #2503411 by DuaelFr, Mac_Weber: Replace deprecated usage of entity_create('comment*') with a direct call to Comment/CommentType::create()

Issue #2380023 by tibbsa, subhojit777, rpayanm: Clean-up Comment module Test members - ensure property definition and use of camelCase naming convention

Issue #2336177 by alexpott, YesCT: Fixed ConfigurableLanguage cannot be created/removed directly, integrate language_save() and language_delete().

Issue #2218065 by jhodgdon, dawehner: Fixed Need to join fields to the entity field data tables, not entity tables, or filtering increases number of results.