7 files declare their use of Kernel

AddClassesToCachePass.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/DependencyInjection/AddClassesToCachePass.php
ConfigDataCollector.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/DataCollector/ConfigDataCollector.php
ConfigDataCollectorTest.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/Tests/DataCollector/ConfigDataCollectorTest.php
DrupalKernel.php in drupal/core/lib/Drupal/Core/DrupalKernel.php
Definition of Drupal\Core\DrupalKernel.
KernelForOverrideName.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/Tests/Fixtures/KernelForOverrideName.php
KernelForTest.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/Tests/Fixtures/KernelForTest.php
KernelTest.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/Tests/KernelTest.php