15 files declare their use of GetResponseEvent

AccessSubscriber.php in drupal/core/lib/Drupal/Core/EventSubscriber/AccessSubscriber.php
Contains Drupal\Core\EventSubscriber\AccessSubscriber.
BanSubscriber.php in drupal/core/modules/ban/lib/Drupal/ban/EventSubscriber/BanSubscriber.php
Definition of Drupal\ban\EventSubscriber\BanSubscriber.
HttpKernel.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpKernel.php
LegacyAccessSubscriber.php in drupal/core/lib/Drupal/Core/EventSubscriber/LegacyAccessSubscriber.php
Contains Drupal\Core\EventSubscriber\LegacyAccessSubscriber.
LegacyRequestSubscriber.php in drupal/core/lib/Drupal/Core/EventSubscriber/LegacyRequestSubscriber.php
Definition of Drupal\Core\EventSubscriber\LegacyRequestSubscriber.
LocaleListener.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/EventListener/LocaleListener.php
LocaleListenerTest.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/Tests/EventListener/LocaleListenerTest.php
MaintenanceModeSubscriber.php in drupal/core/lib/Drupal/Core/EventSubscriber/MaintenanceModeSubscriber.php
Definition of Drupal\Core\EventSubscriber\MaintenanceModeSubscriber.
PathSubscriber.php in drupal/core/lib/Drupal/Core/EventSubscriber/PathSubscriber.php
Definition of Drupal\Core\EventSubscriber\PathSubscriber.
PathSubscriber.php in drupal/core/modules/system/tests/modules/url_alter_test/lib/Drupal/url_alter_test/PathSubscriber.php
Contains Drupal\url_alter_test\PathSubscriber.
ProfilerListener.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/EventListener/ProfilerListener.php
RouteProcessorSubscriber.php in drupal/core/lib/Drupal/Core/EventSubscriber/RouteProcessorSubscriber.php
Definition of Drupal\Core\EventSubscriber\RouteProcessorSubscriber.
RouterListener.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/EventListener/RouterListener.php
RouterListenerTest.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/Tests/EventListener/RouterListenerTest.php
TestClass.php in drupal/core/modules/system/tests/modules/bundle_test/lib/Drupal/bundle_test/TestClass.php
Definition of Drupal\bundle_test\TestClass.