9 files declare their use of CalculatedPermissionsItem

AccessPolicyProcessorTest.php in core/tests/Drupal/Tests/Core/Session/AccessPolicyProcessorTest.php
CalculatedPermissionsItemTest.php in core/tests/Drupal/Tests/Core/Session/CalculatedPermissionsItemTest.php
CalculatedPermissionsTest.php in core/tests/Drupal/Tests/Core/Session/CalculatedPermissionsTest.php
InstallerAccessPolicy.php in core/lib/Drupal/Core/Installer/InstallerAccessPolicy.php
PermissionCheckerTest.php in core/tests/Drupal/Tests/Core/Session/PermissionCheckerTest.php
PermissionsHashGeneratorTest.php in core/tests/Drupal/Tests/Core/Session/PermissionsHashGeneratorTest.php
RefinableCalculatedPermissionsTest.php in core/tests/Drupal/Tests/Core/Session/RefinableCalculatedPermissionsTest.php
SuperUserAccessPolicyTest.php in core/tests/Drupal/Tests/Core/Session/SuperUserAccessPolicyTest.php
UserRolesAccessPolicyTest.php in core/tests/Drupal/Tests/Core/Session/UserRolesAccessPolicyTest.php

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