Merge pull request #59842 from ixdy/update-rules_go-02-2018

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>.

 Update bazelbuild/rules_go, kubernetes/repo-infra, and gazelle dependencies

**What this PR does / why we need it**: updates our bazelbuild/rules_go dependency in order to bump everything to go1.9.4. I'm separating this effort into two separate PRs, since updating rules_go requires a large cleanup, removing an attribute from most build rules.

**Release note**:

```release-note
NONE
```

Kubernetes-commit: 96ec3187180b9c1d722756b3ea0984ebe65424dc

vendor/k8s.io/code-generator/pkg/util/build.go

@@ -18,10 +18,14 @@ package util
 
 import (
 	gobuild "go/build"
+	"path"
 	"path/filepath"
+	"reflect"
 	"strings"
 )
 
+type empty struct{}
+
 // CurrentPackage returns the go package of the current directory, or "" if it cannot
 // be derived from the GOPATH.
 func CurrentPackage() string {
@@ -50,3 +54,8 @@ func hasSubdir(root, dir string) (rel string, ok bool) {
 	// cut off root
 	return filepath.ToSlash(dir[len(root):]), true
 }
+
+// BoilerplatePath uses the boilerplate in code-generator by calculating the relative path to it.
+func BoilerplatePath() string {
+	return path.Join(reflect.TypeOf(empty{}).PkgPath(), "/../../hack/boilerplate.go.txt")
+}