Properly escape SQL table.

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

@@ -62,7 +62,7 @@ public function matchRequestPartial(Request $request) {
 
     $ancestors = $this->getCandidateOutlines($parts);
 
-    $routes = $this->connection->query("SELECT name, route FROM {{$this->tableName}} WHERE pattern_outline IN (:patterns) ORDER BY fit", array(
+    $routes = $this->connection->query("SELECT name, route FROM {" . $this->connection->escapeTable($this->tableName) . "} WHERE pattern_outline IN (:patterns) ORDER BY fit", array(
       ':patterns' => $ancestors,
     ))
     ->fetchAllKeyed();