Merge remote-tracking branch 'wscci/1874500-routing-take-2' into 8.x

core/lib/Drupal/Core/CoreBundle.php

...DependencyInjection/Compiler/RegisterRouteFiltersPass.php

core/lib/Drupal/Core/LegacyUrlMatcher.php

core/lib/Drupal/Core/Routing/ChainMatcher.php

core/lib/Drupal/Core/Routing/CompiledRoute.php

core/lib/Drupal/Core/Routing/FinalMatcherInterface.php

core/lib/Drupal/Core/Routing/FirstEntryFinalMatcher.php

core/lib/Drupal/Core/Routing/HttpMethodMatcher.php

core/lib/Drupal/Core/Routing/InitialMatcherInterface.php

core/lib/Drupal/Core/Routing/MatcherDumper.php

core/lib/Drupal/Core/Routing/MimeTypeMatcher.php

core/lib/Drupal/Core/Routing/NestedMatcher.php

core/lib/Drupal/Core/Routing/NestedMatcherInterface.php

core/lib/Drupal/Core/Routing/NullGenerator.php

core/lib/Drupal/Core/Routing/PartialMatcher.php

core/lib/Drupal/Core/Routing/PartialMatcherInterface.php

core/lib/Drupal/Core/Routing/RouteCompiler.php

core/lib/Drupal/Core/Routing/RouteProvider.php

core/lib/Drupal/Core/Routing/UrlGenerator.php

core/lib/Drupal/Core/Routing/UrlMatcher.php