fixup! Added plugin support for TagHandler

Author: vidarl

src/DependencyInjection/Compiler/DriverPass.php

@@ -6,6 +6,10 @@
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Reference;
 
+/**
+ * We support http cache drivers to be provided by 3rd party bundles.
+ * This pass loads those drivers as documented in doc/drivers.md
+ */
 class DriverPass implements CompilerPassInterface
 {
     public function process(ContainerBuilder $container)