Issue #2095303 by swentel, plopesc, Berdir, claudiu.cristea, yched: Rename 'field_entity' to 'field_config' and 'field_instance' to 'field_instance_config'.

Issue #2164827 by Berdir, Xano, tim.plunkett: Rename the entityInfo() and entityType() methods on EntityInterface and EntityStorageControllerInterface.

Issue #2018319 by yched, swentel, pcambra: Remove field_read_field(s)() and field_read_instance(s) in favor of entity_load() and entity_load_multiple_by_properties().

Issue #2083803 by andypost, Berdir: Convert field type to typed data plugin for field_test() module.

Issue #1953408 by swentel, aspilicious, andypost, yched: Remove ArrayAccess BC layer from field config entities.

Issue #2083785 by Berdir, yched, das-peter: Add support for determining which field properties are cacheable.

Issue #2079025 by yched, Berdir: Remove dead code (e.g. field_test().storage.inc) due to entity storage refactoring.

This reverts commit a234a4fa.

Bad commit message. :P

Issue #1497374 by yched, chx, amateescu, plach, Damien Tournoud, fago, swentel: Switch from Field-based storage to Entity-based storage.

Issue #1847002 by tim.plunkett, effulgentsia, msonnabaum: Move entity type classes from Drupal$provider\Plugin\Core\Entity to Drupal$provider\Entity.

Issue #1822000 by Berdir, plach, amateescu, yched: Remove Drupal\field_test\Plugin\Entity\Type\TestEntity in favor of EntityTest.

Issue #1969728 by yched, effulgentsia, swentel, fago, plach: Implement Field API 'field types' as TypedData Plugins.

Issue #1981314 by pcambra, aspilicious, andypost, swentel: Drop procedural usage of fields in field module.

Issue #1620010 by dawehner, ParisLiakos, plach, jibran: Move LANGUAGE constants to the Language class.

Issue #1253820 by yched, zserno, tim.plunkett, xjm, effulgentsia, plach: Fixed It's impossible to submit no value for a field that has a default value.

Issue #1874300 by Berdir, swentel: Remove $entity_type argument from field.module functions that receive a single $entity.

Issue #1763974 by tim.plunkett, EclipseGC, berdir, xjm, neclimdul, FabianX: Convert entity type info into plugins.

Issue #1797106 by zuuperman, dcam, Lars Toomre, xjm: Remove t() from test assertions in Field module