Merge pull request #62412 from bhcleek/go1.10

Automatic merge from submit-queue. 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>.

generated code should pass go vet for go1.10

**What this PR does / why we need it**:

Update code generator and the code it generates to pass `go vet`.

go1.10 runs `go vet` whenever `go test` is run. Because of this, generated code for CRDs needs to pass `go vet`.

**Release note**:

```release-note
Code generated for CRDs now passes `go vet`.
```

Kubernetes-commit: 5dde701b876d1d0915314c3ed146e986c4327f7e

vendor/k8s.io/code-generator/_examples/crd/apis/example/v1/doc.go

@@ -15,5 +15,6 @@ limitations under the License.
 */
 
 // +k8s:deepcopy-gen=package
+// +k8s:defaulter-gen=TypeMeta
 // +groupName=example.crd.code-generator.k8s.io
 package v1

vendor/k8s.io/code-generator/_examples/crd/apis/example/v1/zz_generated.defaults.go

@@ -0,0 +1,32 @@
+// +build !ignore_autogenerated
+
+/*
+Copyright The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Code generated by defaulter-gen. DO NOT EDIT.
+
+package v1
+
+import (
+	runtime "k8s.io/apimachinery/pkg/runtime"
+)
+
+// RegisterDefaults adds defaulters functions to the given scheme.
+// Public to allow building arbitrary schemes.
+// All generated defaulters are covering - they call all nested defaulters.
+func RegisterDefaults(scheme *runtime.Scheme) error {
+	return nil
+}

vendor/k8s.io/code-generator/_examples/crd/apis/example2/v1/doc.go

@@ -15,6 +15,7 @@ limitations under the License.
 */
 
 // +k8s:deepcopy-gen=package
+// +k8s:defaulter-gen=TypeMeta
 // +groupName=example.test.crd.code-generator.k8s.io
 // +groupGoName=SecondExample
 package v1

vendor/k8s.io/code-generator/_examples/crd/apis/example2/v1/zz_generated.defaults.go

@@ -0,0 +1,32 @@
+// +build !ignore_autogenerated
+
+/*
+Copyright The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Code generated by defaulter-gen. DO NOT EDIT.
+
+package v1
+
+import (
+	runtime "k8s.io/apimachinery/pkg/runtime"
+)
+
+// RegisterDefaults adds defaulters functions to the given scheme.
+// Public to allow building arbitrary schemes.
+// All generated defaulters are covering - they call all nested defaulters.
+func RegisterDefaults(scheme *runtime.Scheme) error {
+	return nil
+}

vendor/k8s.io/code-generator/_examples/crd/clientset/versioned/fake/clientset_generated.go

@@ -43,9 +43,10 @@ func NewSimpleClientset(objects ...runtime.Object) *Clientset {
 		}
 	}
 
-	fakePtr := testing.Fake{}
-	fakePtr.AddReactor("*", "*", testing.ObjectReaction(o))
-	fakePtr.AddWatchReactor("*", func(action testing.Action) (handled bool, ret watch.Interface, err error) {
+	cs := &Clientset{}
+	cs.discovery = &fakediscovery.FakeDiscovery{Fake: &cs.Fake}
+	cs.AddReactor("*", "*", testing.ObjectReaction(o))
+	cs.AddWatchReactor("*", func(action testing.Action) (handled bool, ret watch.Interface, err error) {
 		gvr := action.GetResource()
 		ns := action.GetNamespace()
 		watch, err := o.Watch(gvr, ns)
@@ -55,7 +56,7 @@ func NewSimpleClientset(objects ...runtime.Object) *Clientset {
 		return true, watch, nil
 	})
 
-	return &Clientset{fakePtr, &fakediscovery.FakeDiscovery{Fake: &fakePtr}}
+	return cs
 }
 
 // Clientset implements clientset.Interface. Meant to be embedded into a