10 files declare their use of EntityViewsData in Zircon Profile 8

AggregatorFeedViewsData.php in core/modules/aggregator/src/AggregatorFeedViewsData.php

Contains \Drupal\aggregator\AggregatorFeedViewsData.

AggregatorItemViewsData.php in core/modules/aggregator/src/AggregatorItemViewsData.php

Contains \Drupal\aggregator\AggregatorItemViewsData.

BlockContentViewsData.php in core/modules/block_content/src/BlockContentViewsData.php

Contains \Drupal\block_content\BlockContentViewsData.

CommentViewsData.php in core/modules/comment/src/CommentViewsData.php

Contains \Drupal\comment\CommentViewsData.

EntityTestViewsData.php in core/modules/system/tests/modules/entity_test/src/EntityTestViewsData.php

Contains \Drupal\entity_test\EntityTestViewsData.

EntityViewsDataTest.php in core/modules/views/tests/src/Unit/EntityViewsDataTest.php

Contains \Drupal\Tests\views\Unit\EntityViewsDataTest.

FileViewsData.php in core/modules/file/src/FileViewsData.php

Contains \Drupal\file\FileViewsData.

NodeViewsData.php in core/modules/node/src/NodeViewsData.php

Contains \Drupal\node\NodeViewsData.

TermViewsData.php in core/modules/taxonomy/src/TermViewsData.php

Contains \Drupal\taxonomy\TermViewsData.

UserViewsData.php in core/modules/user/src/UserViewsData.php

Contains \Drupal\user\UserViewsData.