[Config] Fix dumped files invalidation by OPCache

src/Symfony/Component/Config/ConfigCache.php

@@ -149,6 +149,10 @@ class ConfigCache implements ConfigCacheInterface
                 // discard chmod failure (some filesystem may not support it)
             }
         }
+
+        if (\function_exists('opcache_invalidate') && ini_get('opcache.enable')) {
+            @opcache_invalidate($this->file, true);
+        }
     }
 
     /**