XCache cannot be flushed on the CLI -> for pretty much the same reason as APC

Stumbled upon that when implementing Caching in our project using Symfony2. It's pretty useless in SF2 to e.g. execute the "doctrine:cache:clear-query" since it doesn't clear anything. There are workarounds for that BTW: https://github.com/ornicar/ApcBundle (but it's kinda ugly) + my initial question on stackoverflow: http://stackoverflow.com/questions/20241652/symfony2-flush-xcache-class-cache-on-multiple-instances-on-deployment