13 files declare their use of ParameterBag

Container.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Container.php
container8.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/Fixtures/containers/container8.php
ContainerBuilderTest.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php
ContainerTest.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/ContainerTest.php
DrupalKernel.php in drupal/core/lib/Drupal/Core/DrupalKernel.php
Definition of Drupal\Core\DrupalKernel.
GraphvizDumper.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Dumper/GraphvizDumper.php
HttpKernelTest.php in drupal/core/tests/Drupal/Tests/Core/HttpKernelTest.php
Contains \Drupal\Tests\Core\HttpKernelTest.
Kernel.php in drupal/core/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/Kernel.php
ParameterBagTest.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/ParameterBag/ParameterBagTest.php
PhpDumperTest.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php
services1.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services1.php
services8.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services8.php
services9.php in drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services9.php