6 files declare their use of ConstraintManager

ContextDefinitionIsSatisfiedTest.php in core/tests/Drupal/Tests/Core/Plugin/Context/ContextDefinitionIsSatisfiedTest.php
ContextHandlerTest.php in core/tests/Drupal/Tests/Core/Plugin/ContextHandlerTest.php
Contains \Drupal\Tests\Core\Plugin\ContextHandlerTest.
EntityContextDefinitionIsSatisfiedTest.php in core/tests/Drupal/Tests/Core/Plugin/Context/EntityContextDefinitionIsSatisfiedTest.php
RecursiveContextualValidatorTest.php in core/tests/Drupal/Tests/Core/TypedData/RecursiveContextualValidatorTest.php
TypedDataManager.php in core/lib/Drupal/Core/TypedData/TypedDataManager.php
TypedDataManagerInterface.php in core/lib/Drupal/Core/TypedData/TypedDataManagerInterface.php

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