6 files declare their use of Field in Zircon Profile 8

Depth.php in core/modules/comment/src/Plugin/views/field/Depth.php

Contains \Drupal\comment\Plugin\views\field\Depth.

EntityFieldRenderer.php in core/modules/views/src/Entity/Render/EntityFieldRenderer.php

Contains \Drupal\views\Entity\Render\EntityFieldRenderer.

FieldFieldTest.php in core/modules/views/src/Tests/Handler/FieldFieldTest.php

Contains \Drupal\views\Tests\Handler\FieldFieldTest.

FieldTest.php in core/modules/views/tests/src/Unit/Plugin/field/FieldTest.php

Contains \Drupal\Tests\views\Unit\Plugin\field\FieldTest.

TermName.php in core/modules/taxonomy/src/Plugin/views/field/TermName.php

Contains \Drupal\taxonomy\Plugin\views\field\TermName.

ViewResultAssertionTrait.php in core/modules/views/src/Tests/ViewResultAssertionTrait.php

Contains \Drupal\views\Tests\ViewResultAssertionTrait.