[DI] Add and wire ServiceSubscriberInterface

Author: nicolas-grekas

DependencyInjection/Compiler/UnusedTagsPass.php

@@ -24,6 +24,7 @@ class UnusedTagsPass implements CompilerPassInterface
     private $whitelist = array(
         'console.command',
         'container.service_locator',
+        'container.service_subscriber',
         'config_cache.resource_checker',
         'data_collector',
         'form.type',