4fe8496dd1
In 405d5d63b1 we changed for an ordered
list to a map, however the test is order dependent go maps are
randomized.
Change the test to use a slice with an internal type (instead of pulling
back in k8s.io/kubernetes).
Without this change this test will fail occasionally and has no
guarentee for success because of the random order of maps.
Copied from https://github.com/kubernetes/kubernetes/tree/master/third_party/forked/golang/expansion .
This is to eliminate a direct dependency on kubernetes/kubernetes.