Rework pod waiting mechanism in e2e tests to accept pod and watch based

on its ResourceVersion to make sure we catch all the events.

test/e2e/dns.go

@@ -245,7 +245,8 @@ func verifyDNSPodIsRunning(f *framework.Framework) {
 	if len(dnsPods.Items) < 1 {
 		framework.Failf("No pods match the label selector %v", dnsServiceLabelSelector.String())
 	}
-	framework.ExpectNoError(framework.WaitForPodRunningInNamespace(f.Client, dnsPods.Items[0].Name, api.NamespaceSystem))
+	pod := dnsPods.Items[0]
+	framework.ExpectNoError(framework.WaitForPodRunningInNamespace(f.Client, &pod))
 }
 
 func createServiceSpec(serviceName string, isHeadless bool, selector map[string]string) *api.Service {