14 files declare their use of DependencyStack in Dependency Calculation 8

BaseDependencyCollector.php in src/EventSubscriber/DependencyCollector/BaseDependencyCollector.php

CalculateDependenciesEventDispatcherTrait.php in tests/src/Kernel/EventSubscriber/DependencyCollector/CalculateDependenciesEventDispatcherTrait.php

CalculateEntityDependenciesEvent.php in src/Event/CalculateEntityDependenciesEvent.php

ConfigEntityDependencyCollectorTest.php in tests/src/Kernel/EventSubscriber/DependencyCollector/ConfigEntityDependencyCollectorTest.php

DependencyCalculatorTest.php in tests/src/Kernel/DependencyCalculatorTest.php

DependencyHelperTrait.php in tests/src/Kernel/DependencyHelperTrait.php

DrupalMediaEmbedCollectorTest.php in tests/src/Kernel/EventSubscriber/DependencyCollector/DrupalMediaEmbedCollectorTest.php

EmbeddedImagesCollectorTest.php in tests/src/Kernel/EventSubscriber/DependencyCollector/EmbeddedImagesCollectorTest.php

EntityEmbedCollectorTest.php in tests/src/Kernel/EventSubscriber/DependencyCollector/EntityEmbedCollectorTest.php

EntityFormDisplayDependencyCollectorTest.php in tests/src/Kernel/EventSubscriber/DependencyCollector/EntityFormDisplayDependencyCollectorTest.php

EntityPathAliasCollectorTest.php in tests/src/Kernel/EventSubscriber/DependencyCollector/EntityPathAliasCollectorTest.php

EntityReferenceFieldDependencyCollectorTest.php in tests/src/Kernel/EventSubscriber/DependencyCollector/EntityReferenceFieldDependencyCollectorTest.php

LinkFieldCollectorTest.php in tests/src/Kernel/EventSubscriber/DependencyCollector/LinkFieldCollectorTest.php

MenuDependencyTest.php in tests/src/Kernel/EventSubscriber/DependencyCollector/MenuDependencyTest.php