43 files declare their use of RouteCollection

AccessManager.php in drupal/core/lib/Drupal/Core/Access/AccessManager.php
Contains Drupal\Core\Access\AccessManager.
AnnotationClassLoader.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Loader/AnnotationClassLoader.php
AnnotationDirectoryLoader.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Loader/AnnotationDirectoryLoader.php
AnnotationFileLoader.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Loader/AnnotationFileLoader.php
ApacheMatcherDumperTest.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Tests/Matcher/Dumper/ApacheMatcherDumperTest.php
ApacheUrlMatcherTest.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Tests/Matcher/ApacheUrlMatcherTest.php
ClosureLoaderTest.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Tests/Loader/ClosureLoaderTest.php
FinalMatcherInterface.php in drupal/core/lib/Drupal/Core/Routing/FinalMatcherInterface.php
Definition of Drupal\Core\Routing\FinalMatcherInterface.
FirstEntryFinalMatcher.php in drupal/core/lib/Drupal/Core/Routing/FirstEntryFinalMatcher.php
Definition of Drupal\Core\Routing\FirstEntryFinalMatcher.
FirstEntryFinalMatcherTest.php in drupal/core/modules/system/lib/Drupal/system/Tests/Routing/FirstEntryFinalMatcherTest.php
Definition of Drupal\system\Tests\Routing\NestedMatcherTest.
GeneratorDumper.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Generator/Dumper/GeneratorDumper.php
GeneratorDumperInterface.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Generator/Dumper/GeneratorDumperInterface.php
HttpMethodMatcher.php in drupal/core/lib/Drupal/Core/Routing/HttpMethodMatcher.php
Definition of Drupal\Core\Routing\HttpMethodMatcher.
HttpMethodMatcherTest.php in drupal/core/modules/system/lib/Drupal/system/Tests/Routing/HttpMethodMatcherTest.php
Definition of Drupal\system\Tests\Routing\HttpMethodMMatcherTest.
MatcherDumper.php in drupal/core/lib/Drupal/Core/Routing/MatcherDumper.php
Definition of Drupal\Core\Routing\MatcherDumper.
MatcherDumper.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Matcher/Dumper/MatcherDumper.php
MatcherDumperTest.php in drupal/core/modules/system/lib/Drupal/system/Tests/Routing/MatcherDumperTest.php
Definition of Drupal\system\Tests\Routing\UrlMatcherDumperTest.
MimeTypeMatcher.php in drupal/core/lib/Drupal/Core/Routing/MimeTypeMatcher.php
Contains Drupal\Core\Routing\MimeTypeMatcher.
MimeTypeMatcherTest.php in drupal/core/modules/system/lib/Drupal/system/Tests/Routing/MimeTypeMatcherTest.php
Contains Drupal\system\Tests\Routing\MimeTypeMatcherTest.
MockPathMatcher.php in drupal/core/modules/system/lib/Drupal/system/Tests/Routing/MockPathMatcher.php
NestedMatcherTest.php in drupal/core/modules/system/lib/Drupal/system/Tests/Routing/NestedMatcherTest.php
Definition of Drupal\system\Tests\Routing\NestedMatcherTest.
PartialMatcher.php in drupal/core/lib/Drupal/Core/Routing/PartialMatcher.php
Definition of Drupal\Core\Routing\PartialMatcher.
PartialMatcherInterface.php in drupal/core/lib/Drupal/Core/Routing/PartialMatcherInterface.php
Definition of Drupal\Core\Routing\PathMatcherInterface.
PathMatcher.php in drupal/core/lib/Drupal/Core/Routing/PathMatcher.php
Definition of Drupal\Core\Routing\PathMatcher.
PathMatcherTest.php in drupal/core/modules/system/lib/Drupal/system/Tests/Routing/PathMatcherTest.php
Definition of Drupal\system\Tests\Routing\PartialMatcherTest.
PhpGeneratorDumperTest.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Tests/Generator/Dumper/PhpGeneratorDumperTest.php
PhpMatcherDumper.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Matcher/Dumper/PhpMatcherDumper.php
PhpMatcherDumperTest.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Tests/Matcher/Dumper/PhpMatcherDumperTest.php
RedirectableUrlMatcherTest.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Tests/Matcher/RedirectableUrlMatcherTest.php
ResourceBase.php in drupal/core/modules/rest/lib/Drupal/rest/Plugin/ResourceBase.php
Definition of Drupal\rest\Plugin\ResourceBase.
RouteBuilder.php in drupal/core/lib/Drupal/Core/Routing/RouteBuilder.php
Definition of Drupal\Core\Routing\RouteBuilder.
RouteBuildEvent.php in drupal/core/lib/Drupal/Core/Routing/RouteBuildEvent.php
Definition of Drupal\Core\Routing\RouteBuildEvent.
RouteCollectionTest.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Tests/RouteCollectionTest.php
RoutingFixtures.php in drupal/core/modules/system/lib/Drupal/system/Tests/Routing/RoutingFixtures.php
TraceableUrlMatcher.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Matcher/TraceableUrlMatcher.php
TraceableUrlMatcherTest.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Tests/Matcher/TraceableUrlMatcherTest.php
UrlGenerator.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Generator/UrlGenerator.php
UrlGeneratorTest.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Tests/Generator/UrlGeneratorTest.php
UrlMatcher.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Matcher/UrlMatcher.php
UrlMatcherTest.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Tests/Matcher/UrlMatcherTest.php
validpattern.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Tests/Fixtures/validpattern.php
XmlFileLoader.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Loader/XmlFileLoader.php
YamlFileLoader.php in drupal/core/vendor/symfony/routing/Symfony/Component/Routing/Loader/YamlFileLoader.php