Issue #2927806 by alexpott, mondrake, jibran, Mile23: Use PHPUnit 6 for testing when PHP version >= 7.2

Issue #2909349 by claudiu.cristea, Wim Leers: UrlHelper::parse() is wrong with absolute URLs having fragment but not query

Issue #2903908 by mfernea, martin107: Fix 'Drupal.Commenting.FunctionComment.ParamCommentIndentation' coding standard

Issue #2866894 by maxocub: Component tests should not use Drupal\Tests\UnitTestCase but PHPUnit\Framework\TestCase

Issue #1827854 by jamesrward, dman, superspring, joseph.olstad, legolasbo, anrikun, bceyssens, mdeletter, Damien Tournoud: W3C HTML5 Validation error with PHP array-based query-strings built with url() containing [ ] characters (eg views filters)

Issue #2822837 by vaplas, martin107, chiranjeeb2410, klausi, dawehner: Replace @expectedException @expectedExceptionMessage with $this->setExpectedException

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 #2572777 by andypost, alexpott, attiks, andriyun: Fix 'Squiz.Strings.ConcatenationSpacing' coding standard

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

Drupal 8.0.4, SA-CORE-2016-001 by Alan Evans, benjy, berdir, catch, DamienMcKenna, Dave Reid, David_Rothstein, dsnopek, FengWen, fnqgpc, greggles, Gábor Hojtsy, klausi, larowlan, Pere Orga, plach, pwolanin, quicksketch, stefan.r, StryKaizer, YesCT

(cherry picked from commit f25feddd)

Conflicts:
	core/lib/Drupal.php

Issue #2551335 by alexpott, Wim Leers: Remove unnecessary SafeMarkup usage in tests and clear the static cache before every run

Issue #2491155 by mikeburrelljr, Mac_Weber, opdavies: Update drupal.org and kernel.org URLs in core modules (Follow-up to 2489912)

Issue #2457887 by prateekMehta, stefan.r, rpayanm, alexpott: Use Utility\SafeMarkup class instead of Utility\String for placeholder(), checkPlain(),format() functions

Issue #2455083 by dawehner, larowlan, klausi, David_Rothstein, hefox, tsphethean, dstol, DamienMcKenna, Pere Orga, benjy: Open redirect fixes from SA-CORE-2015-001 need to be ported to Drupal 8

Issue #697760 by sun: Replace getInfo() in tests with native phpDoc + annotations (following PHPUnit).

Issue #2076325 by neclimdul, Mile23, alexpott: Fixed Drupal\Component\Utility\Url::externalIsLocal() is wrong in common cases.

Issue #2228627 by tim.plunkett: Core/tests/Drupal/Tests/Component/Utility/UrlHelperTest.php is actually UrlTest.

Issue #2046245 by Mile23, jhedstrom, dawehner: Expand phpunit tests for \Drupal\Component\Utility\Url.

Issue #2010024 by damiankloip, dawehner, ParisLiakos: Move url related functions to a new Url component.

Issue #2003568 by dawehner, jhedstrom: Convert tags,attributes, diff and url validation unit tests to phpunit.