15 files declare their use of MigrateExecutable in Zircon Profile 8

FileUriTest.php in core/modules/file/tests/src/Unit/Plugin/migrate/process/d6/FileUriTest.php

Contains \Drupal\Tests\file\Unit\Plugin\migrate\process\d6\FileUriTest.

IteratorTest.php in core/modules/migrate/tests/src/Unit/process/IteratorTest.php

Contains \Drupal\Tests\migrate\Unit\process\IteratorTest.

MigrateDependenciesTest.php in core/modules/migrate_drupal/src/Tests/dependencies/MigrateDependenciesTest.php

Contains \Drupal\migrate_drupal\Tests\dependencies\MigrateDependenciesTest.

MigrateEventsTest.php in core/modules/migrate/src/Tests/MigrateEventsTest.php

Contains \Drupal\migrate\Tests\MigrateEventsTest.

MigrateInterruptionTest.php in core/modules/migrate/src/Tests/MigrateInterruptionTest.php

Contains \Drupal\migrate\Tests\MigrateInterruptionTest.

MigrateMessageTest.php in core/modules/migrate/src/Tests/MigrateMessageTest.php

Contains \Drupal\migrate\Tests\MigrateMessageTest.

MigrateRollbackTest.php in core/modules/migrate/src/Tests/MigrateRollbackTest.php

Contains \Drupal\migrate\Tests\MigrateRollbackTest.

MigrateSkipRowTest.php in core/modules/migrate/src/Tests/MigrateSkipRowTest.php

Contains \Drupal\migrate\Tests\MigrateSkipRowTest.

MigrateSourceTest.php in core/modules/migrate/tests/src/Unit/MigrateSourceTest.php

Contains \Drupal\Tests\migrate\Unit\MigrateSourceTest.

MigrateTaxonomyTermStubTest.php in core/modules/taxonomy/src/Tests/Migrate/MigrateTaxonomyTermStubTest.php

Contains \Drupal\taxonomy\Tests\Migrate\MigrateTaxonomyTermStubTest.

MigrateTestBase.php in core/modules/migrate/src/Tests/MigrateTestBase.php

Contains \Drupal\migrate\Tests\MigrateTestBase.

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

Contains \Drupal\user\Tests\Migrate\MigrateUserAdminPassTest.

MigrateUserTest.php in core/modules/user/src/Tests/Migrate/d6/MigrateUserTest.php

Contains \Drupal\user\Tests\Migrate\d6\MigrateUserTest.

TermNode.php in core/modules/taxonomy/src/Plugin/migrate/builder/d6/TermNode.php

Contains \Drupal\taxonomy\Plugin\migrate\builder\d6\TermNode.

TestMigrateExecutable.php in core/modules/migrate/tests/src/Unit/TestMigrateExecutable.php

Contains \Drupal\Tests\migrate\Unit\TestMigrateExecutable.