Merge branch '4.1'

* 4.1:
  fix cs
  fix cs
  fix cs
  SCA: consolidate non empty array checks across codebase
  [cs] correct invalid @param types
  [Bridge/PhpUnit] Use composer to download phpunit
  [DI] fix taking lazy services into account when dumping the container
  [Form] Fixed empty data for compound date interval
  [Cache] fix optimizing Psr6Cache for AdapterInterface pools
  deal with explicitly enabled workflow nodes

Author: nicolas-grekas

Router.php

@@ -375,7 +375,7 @@ protected function getMatcherDumperInstance()
      * Provides the ConfigCache factory implementation, falling back to a
      * default implementation if necessary.
      *
-     * @return ConfigCacheFactoryInterface $configCacheFactory
+     * @return ConfigCacheFactoryInterface
      */
     private function getConfigCacheFactory()
     {

Tests/Matcher/Dumper/PhpMatcherDumperTest.php

@@ -472,9 +472,6 @@ public function getRouteCollections()
         );
     }
 
-    /**
-     * @param $dumper
-     */
     private function generateDumpedMatcher(RouteCollection $collection, $redirectableStub = false)
     {
         $options = array('class' => $this->matcherClass);