Issue #2238149 by Berdir, swentel: Apply formatters and widgets in EntityTestFormCotroller.

...nt_translation/src/Tests/ContentTestTranslationUITest.php

core/modules/datetime/src/Tests/DateTimeFieldTest.php

...ty_reference/src/Tests/EntityReferenceIntegrationTest.php

...rence/src/Tests/Views/EntityReferenceRelationshipTest.php

core/modules/field/src/Tests/Boolean/BooleanFieldTest.php

core/modules/field/src/Tests/Email/EmailFieldTest.php

core/modules/field/src/Tests/FieldUnitTestBase.php

core/modules/field/src/Tests/FormTest.php

core/modules/field/src/Tests/Number/NumberFieldTest.php

core/modules/field/src/Tests/TranslationWebTest.php

core/modules/hal/src/Tests/NormalizeTest.php

core/modules/link/src/Tests/LinkFieldTest.php

core/modules/quickedit/src/Tests/QuickEditTestBase.php

core/modules/system/src/Tests/Entity/EntityFormTest.php

core/modules/system/src/Tests/Entity/EntityRevisionsTest.php

.../Tests/KeyValueStore/KeyValueContentEntityStorageTest.php

...les/system/tests/modules/entity_test/entity_test.info.yml

...ystem/tests/modules/entity_test/src/Entity/EntityTest.php

...s/system/tests/modules/entity_test/src/EntityTestForm.php

...es/taxonomy/src/Tests/TermFieldMultipleVocabularyTest.php