
Automatic merge from submit-queue (batch tested with PRs 55093, 54966, 55047, 54971, 54786). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. Adding an e2e test for gce multi cluster ingress Basic test that verifies that multi cluster ingress gets the instance groups annotation. Ref https://github.com/kubernetes/ingress-gce/issues/71 cc @csbell @G-Harmon @nicksardo @bowei ```release-note NONE```