diff -u b/core/modules/system/tests/modules/menu_test/menu_test.module b/core/modules/system/tests/modules/menu_test/menu_test.module
--- b/core/modules/system/tests/modules/menu_test/menu_test.module
+++ b/core/modules/system/tests/modules/menu_test/menu_test.module
@@ -132,7 +132,7 @@
   // Initialize the theme system so that $theme_key will be populated.
   drupal_theme_initialize();
   // Now we check what the theme negotiator service returns.
-  $active_theme = \Drupal::service('theme.negotiator')->determineActiveTheme(\Drupal::routeMatch());
+  $active_theme = \Drupal::service('theme.negotiator')->determineActiveTheme(\Drupal::routeMatch(), \Drupal::request());
   $output = "Active theme: $active_theme. Actual theme: $theme_key.";
   if ($inherited) {
     $output .= ' Theme negotiation inheritance is being tested.';
diff -u b/core/modules/tour/tour.module b/core/modules/tour/tour.module
--- b/core/modules/tour/tour.module
+++ b/core/modules/tour/tour.module
@@ -91,7 +91,7 @@
   if (!empty($results) && $tours = entity_load_multiple('tour', array_keys($results))) {
     foreach ($tours as $id => $tour) {
       // Match on params.
-      if (!$tour->hasMatchingRoute($route_name, $route_match->getRawArguments())) {
+      if (!$tour->hasMatchingRoute($route_name, $route_match->getRawArguments()->all())) {
         unset($tours[$id]);
       }
     }
only in patch2:
unchanged:
--- a/core/modules/rest/lib/Drupal/rest/RequestHandler.php
+++ b/core/modules/rest/lib/Drupal/rest/RequestHandler.php
@@ -26,7 +26,7 @@ class RequestHandler implements ContainerAwareInterface {
   /**
    * Handles a web API request.
    *
-   * @param Symfony\Component\HttpFoundation\Request $request
+   * @param \Symfony\Component\HttpFoundation\Request $request
    *   The HTTP request object.
    *
    * @return \Symfony\Component\HttpFoundation\Response
@@ -73,10 +73,9 @@ public function handle(Request $request) {
 
     // Determine the request parameters that should be passed to the resource
     // plugin.
-    $route_parameters = $request->attributes->get('_route_params');
     $parameters = array();
     // Filter out all internal parameters starting with "_".
-    foreach ($route_parameters as $key => $parameter) {
+    foreach ($request->attributes as $key => $parameter) {
       if ($key{0} !== '_') {
         $parameters[] = $parameter;
       }