40 files declare their use of DrupalKernel in Drupal 8

authorize.php in core/authorize.php

Administrative script for running authorized file operations.

db-tools.php in core/scripts/db-tools.php

A command line application to import a database generation script.

DiscoverServiceProvidersTest.php in core/tests/Drupal/Tests/Core/DrupalKernel/DiscoverServiceProvidersTest.php

DistributionProfileExistingSettingsTest.php in core/tests/Drupal/FunctionalTests/Installer/DistributionProfileExistingSettingsTest.php

DrupalKernelTest.php in core/tests/Drupal/Tests/Core/DrupalKernel/DrupalKernelTest.php

DrupalKernelTest.php in core/tests/Drupal/KernelTests/Core/DrupalKernel/DrupalKernelTest.php

dump-database-d8-mysql.php in core/scripts/dump-database-d8-mysql.php

A command line application to dump a database to a generation script.

ExtensionDiscovery.php in core/lib/Drupal/Core/Extension/ExtensionDiscovery.php

FunctionalTestSetupTrait.php in core/lib/Drupal/Core/Test/FunctionalTestSetupTrait.php

generate-proxy-class.php in core/scripts/generate-proxy-class.php

A command line application to generate proxy classes.

index.php in ./index.php

The PHP page that serves all page requests on a Drupal installation.

index.php in core/assets/scaffold/files/index.php

The PHP page that serves all page requests on a Drupal installation.

install.core.inc in core/includes/install.core.inc

API functions for installing Drupal.

InstallCommand.php in core/lib/Drupal/Core/Command/InstallCommand.php

InstallerExistingSettingsMismatchProfileTest.php in core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsMismatchProfileTest.php

InstallerExistingSettingsNoProfileTest.php in core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsNoProfileTest.php

InstallerExistingSettingsReadOnlyMismatchProfileTest.php in core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsReadOnlyMismatchProfileTest.php

InstallerExistingSettingsTest.php in core/tests/Drupal/FunctionalTests/Installer/InstallerExistingSettingsTest.php

InstallerKernel.php in core/lib/Drupal/Core/Installer/InstallerKernel.php

InstallerTestBase.php in core/modules/simpletest/src/InstallerTestBase.php

InstallerTestBase.php in core/tests/Drupal/FunctionalTests/Installer/InstallerTestBase.php

KernelTestBase.php in core/tests/Drupal/KernelTests/KernelTestBase.php

KernelTestBase.php in core/modules/simpletest/src/KernelTestBase.php

PublicStream.php in core/lib/Drupal/Core/StreamWrapper/PublicStream.php

rebuild.php in core/rebuild.php

Rebuilds all Drupal caches even when Drupal itself does not work.

ReplicaKillSwitchTest.php in core/tests/Drupal/KernelTests/Core/Database/ReplicaKillSwitchTest.php

ServerCommand.php in core/lib/Drupal/Core/Command/ServerCommand.php

statistics.php in core/modules/statistics/statistics.php

Handles counts of node views via AJAX with minimal bootstrap.

StreamWrapperTest.php in core/tests/Drupal/KernelTests/Core/File/StreamWrapperTest.php

system.install in core/modules/system/system.install

Install, update and uninstall functions for the system module.

TestDiscoveryTest.php in core/tests/Drupal/Tests/Core/Test/TestDiscoveryTest.php

TestDiscoveryTest.php in core/modules/simpletest/tests/src/Unit/TestDiscoveryTest.php

TestKernel.php in core/lib/Drupal/Core/Test/TestKernel.php

TestRunnerKernel.php in core/lib/Drupal/Core/Test/TestRunnerKernel.php

TestSiteUserLoginCommand.php in core/tests/Drupal/TestSite/Commands/TestSiteUserLoginCommand.php

UpdateKernel.php in core/lib/Drupal/Core/Update/UpdateKernel.php

UpdateTestBase.php in core/modules/update/src/Tests/UpdateTestBase.php

UpdateTestBase.php in core/modules/update/tests/src/Functional/UpdateTestBase.php

utility.inc in core/includes/utility.inc

Miscellaneous functions.

ValidateHostnameTest.php in core/tests/Drupal/Tests/Core/DrupalKernel/ValidateHostnameTest.php