20 files declare their use of EntityFormDisplay in Zircon Profile 8.0

ContentEntityForm.php in core/lib/Drupal/Core/Entity/ContentEntityForm.php

Contains \Drupal\Core\Entity\ContentEntityForm.

EntityDisplayTest.php in core/modules/field_ui/src/Tests/EntityDisplayTest.php

Contains \Drupal\field_ui\Tests\EntityDisplayTest.

EntityFormDisplayTest.php in core/modules/field_ui/src/Tests/EntityFormDisplayTest.php

Contains \Drupal\field_ui\Tests\EntityFormDisplayTest.

EntityReferenceXSSTest.php in core/modules/field/src/Tests/EntityReference/EntityReferenceXSSTest.php

Contains \Drupal\field\Tests\EntityReference\EntityReferenceXSSTest.

entity_test.module in core/modules/system/tests/modules/entity_test/entity_test.module

Test module for the entity API providing several entity types for testing.

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

Contains \Drupal\field\Tests\FormTest.

ForumTest.php in core/modules/forum/src/Tests/ForumTest.php

Contains \Drupal\forum\Tests\ForumTest.

MigrateCommentEntityFormDisplaySubjectTest.php in core/modules/comment/src/Tests/Migrate/d7/MigrateCommentEntityFormDisplaySubjectTest.php

Contains \Drupal\comment\Tests\Migrate\d7\MigrateCommentEntityFormDisplaySubjectTest.

MigrateCommentEntityFormDisplayTest.php in core/modules/comment/src/Tests/Migrate/d7/MigrateCommentEntityFormDisplayTest.php

Contains \Drupal\comment\Tests\Migrate\d7\MigrateCommentEntityFormDisplayTest.

MigrateCommentVariableEntityFormDisplaySubjectTest.php in core/modules/comment/src/Tests/Migrate/d6/MigrateCommentVariableEntityFormDisplaySubjectTest.php

Contains \Drupal\comment\Tests\Migrate\d6\MigrateCommentVariableEntityFormDisplaySubjectTest.

MigrateCommentVariableEntityFormDisplayTest.php in core/modules/comment/src/Tests/Migrate/d6/MigrateCommentVariableEntityFormDisplayTest.php

Contains \Drupal\comment\Tests\Migrate\d6\MigrateCommentVariableEntityFormDisplayTest.

MigrateFieldInstanceWidgetSettingsTest.php in core/modules/field/src/Tests/Migrate/d7/MigrateFieldInstanceWidgetSettingsTest.php

Contains \Drupal\field\Tests\Migrate\d7\MigrateFieldInstanceWidgetSettingsTest.

MigrateFieldWidgetSettingsTest.php in core/modules/field/src/Tests/Migrate/d6/MigrateFieldWidgetSettingsTest.php

Contains \Drupal\field\Tests\Migrate\d6\MigrateFieldWidgetSettingsTest.

MigrateUploadEntityFormDisplayTest.php in core/modules/file/src/Tests/Migrate/d6/MigrateUploadEntityFormDisplayTest.php

Contains \Drupal\file\Tests\Migrate\d6\MigrateUploadEntityFormDisplayTest.

MigrateUserPictureEntityFormDisplayTest.php in core/modules/user/src/Tests/Migrate/MigrateUserPictureEntityFormDisplayTest.php

Contains \Drupal\user\Tests\Migrate\MigrateUserPictureEntityFormDisplayTest.

MigrateUserProfileEntityFormDisplayTest.php in core/modules/user/src/Tests/Migrate/MigrateUserProfileEntityFormDisplayTest.php

Contains \Drupal\user\Tests\Migrate\MigrateUserProfileEntityFormDisplayTest.

MigrateVocabularyEntityFormDisplayTest.php in core/modules/taxonomy/src/Tests/Migrate/d6/MigrateVocabularyEntityFormDisplayTest.php

Contains \Drupal\taxonomy\Tests\Migrate\d6\MigrateVocabularyEntityFormDisplayTest.

NestedEntityTestForm.php in core/modules/field/tests/modules/field_test/src/Form/NestedEntityTestForm.php

Contains \Drupal\field_test\Form\NestedEntityTestForm.

QuickEditFieldForm.php in core/modules/quickedit/src/Form/QuickEditFieldForm.php

Contains \Drupal\quickedit\Form\QuickEditFieldForm.

UserRegistrationTest.php in core/modules/user/src/Tests/UserRegistrationTest.php

Contains \Drupal\user\Tests\UserRegistrationTest.