9 files declare their use of UserStorageInterface

CommentNameConstraintValidator.php in core/modules/comment/src/Plugin/Validation/Constraint/CommentNameConstraintValidator.php
ProtectedUserFieldConstraintValidator.php in core/modules/user/src/Plugin/Validation/Constraint/ProtectedUserFieldConstraintValidator.php
SiteConfigureForm.php in core/lib/Drupal/Core/Installer/Form/SiteConfigureForm.php
UserAuthenticationController.php in core/modules/user/src/Controller/UserAuthenticationController.php
UserController.php in core/modules/user/src/Controller/UserController.php
UserLoginForm.php in core/modules/user/src/Form/UserLoginForm.php
UserMailRequiredValidatorTest.php in core/modules/user/tests/src/Unit/Plugin/Validation/Constraint/UserMailRequiredValidatorTest.php
UserMultipleCancelConfirm.php in core/modules/user/src/Form/UserMultipleCancelConfirm.php
UserPasswordForm.php in core/modules/user/src/Form/UserPasswordForm.php

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