Integration with Eshell's own `cd =`?

[jwiegley]

If you type cd = in Eshell, it will show you a list of all the directories you've recently been to. If you type cd =foo, it will change to the most recently visited directory containing the word "foo".

I wonder if eshell-z could plug into this mechanism, by reordering the recent directories list used by cd = each time a command is invoked.