Issue #2527816 by jhedstrom, pfrenssen, chx, catch: Logic error in SqlContentEntityStorage::countFieldData() attempts to drop `name` column

Issue #2392669 by hussainweb, Mile23, rteijeiro, subhojit777, AjitS: Clean-up field module test members - ensure property definition and use of camelCase naming convention

Issue #2164601 by yched, jibran, amateescu, pfrenssen: Stop auto-creating FieldItems on mere reading of $entity->field[N]

Issue #2278583 by nlisgo, Berdir, joshi.rohit100 | Fabianx: Fixed field_has_data looks at current data instead of revisioning data: this can lead to data loss.

Issue #2100343 by Berdir, fago, martin107, visabhishek, sriharsha.uppuluri, Yorirou: Remove 'fieldable' key in entity definitions in favour of 'field_ui_base_route'.

Issue #2312093 by alexpott, yched, andypost, swentel | xjm: Rename FieldInstanceConfig to FieldConfig.

Issue #2326719 by plach, effulgentsia: Move pseudo-private table mapping functions from ContentEntityDatabaseStorage to public API of DefaultTableMapping.

Issue #2287727 by yched, swentel, alexpott: Rename Field[instance]Config classes and entity types (again).

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

Issue #2144263 by fago, yched, alexpott, Berdir, plach, andypost, effulgentsia, michaelfavia: Decouple entity field storage from configurable fields.

Issue #2277941 by yched: Allow injecting an arbitrary FieldConfig when building a FieldInstanceConfig.