Applied fixes from FlintCI

src/Adapter/SymfonyCache.php

@@ -84,7 +84,7 @@ public function __construct(
         array $types,
         array $servers,
         array $timeouts,
-        EventDispatcherInterface $eventDispatcher = null
+        ?EventDispatcherInterface $eventDispatcher = null
     ) {
         $this->router = $router;
         $this->filesystem = $filesystem;

src/Command/BaseCacheCommand.php

@@ -27,14 +27,14 @@ abstract class BaseCacheCommand extends ContainerAwareCommand
     private $cacheManager;
 
     public function __construct(
-        string $name = null,
-        CacheManagerInterface $cacheManager = null
+        ?string $name = null,
+        ?CacheManagerInterface $cacheManager = null
     ) {
         parent::__construct($name);
         if (null === $cacheManager) {
             @trigger_error(sprintf(
                 'Not providing a cache manager to "%s" is deprecated since 3.x and will no longer be possible in 4.0',
-                \get_class($this)
+                static::class
             ), E_USER_DEPRECATED);
         }
         $this->cacheManager = $cacheManager;

tests/Adapter/ApcCacheTest.php

@@ -27,7 +27,7 @@ class ApcCacheTest extends TestCase
      */
     private $cache;
 
-    public function setUp(): void
+    protected function setUp(): void
     {
         if (!\function_exists('apcu_store')) {
             $this->markTestSkipped('APC is not installed');