Issue #2572791 by Mile23, andriyun, attiks, RoSk0: Fix 'Drupal.WhiteSpace.OpenBracketSpacing' coding standard

Revert "Revert "Revert "Issue #2715485 by harsha012, malavya, himanshu-dixit, mfernea, vprocessor, tameeshb, Mile23, Jo Fitzgerald, klausi, xjm: Fix 'Drupal.Commenting.InlineComment.NoSpaceBefore' coding standard"""

This reverts commit b0675761.

Revert "Revert "Issue #2715485 by harsha012, malavya, himanshu-dixit, mfernea, vprocessor, tameeshb, Mile23, Jo Fitzgerald, klausi, xjm: Fix 'Drupal.Commenting.InlineComment.NoSpaceBefore' coding standard""

This reverts commit 964954e1.

Revert "Issue #2715485 by harsha012, malavya, himanshu-dixit, mfernea, vprocessor, tameeshb, Mile23, Jo Fitzgerald, klausi, xjm: Fix 'Drupal.Commenting.InlineComment.NoSpaceBefore' coding standard"

This reverts commit 2df73e2c.

Issue #2715485 by harsha012, malavya, himanshu-dixit, mfernea, vprocessor, tameeshb, Mile23, Jo Fitzgerald, klausi, xjm: Fix 'Drupal.Commenting.InlineComment.NoSpaceBefore' coding standard

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 #2756401 by claudiu.cristea, pfrenssen, sandervd, gielfeldt, alexpott, amateescu, dawehner: EntityAutocomplete form element validation is too strict

Revert "Issue #2664322 by dawehner, benjifisher, almaudoh: key_value table is only used by a core service but it depends on system install"

This reverts commit 5571193f.

Issue #2664322 by dawehner, benjifisher, almaudoh: key_value table is only used by a core service but it depends on system install

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

Issue #2679096 by Berdir, dawehner, tim.plunkett: Convert Kernel Tests in Drupal\system\Tests\Entity to phpunit

Issue #2577963 by yched, amateescu, klausi: Let entity_ref Selection handlers be in charge of the field validation

Issue #2473759 by tim.plunkett, Berdir, effulgentsia: Form caches should be deleted after submission

Issue #1959806 by amateescu, jibran, goldorak, Wim Leers, yched, dawehner: Provide a generic 'entity_autocomplete' Form API element