Update dependencies to K8s 1.8

vendor/github.com/googleapis/gnostic/compiler/context.go

@@ -14,28 +14,30 @@
 
 package compiler
 
+// Context contains state of the compiler as it traverses a document.
 type Context struct {
 	Parent            *Context
 	Name              string
 	ExtensionHandlers *[]ExtensionHandler
 }
 
+// NewContextWithExtensions returns a new object representing the compiler state
 func NewContextWithExtensions(name string, parent *Context, extensionHandlers *[]ExtensionHandler) *Context {
 	return &Context{Name: name, Parent: parent, ExtensionHandlers: extensionHandlers}
 }
 
+// NewContext returns a new object representing the compiler state
 func NewContext(name string, parent *Context) *Context {
 	if parent != nil {
 		return &Context{Name: name, Parent: parent, ExtensionHandlers: parent.ExtensionHandlers}
-	} else {
-		return &Context{Name: name, Parent: parent, ExtensionHandlers: nil}
 	}
+	return &Context{Name: name, Parent: parent, ExtensionHandlers: nil}
 }
 
+// Description returns a text description of the compiler state
 func (context *Context) Description() string {
 	if context.Parent != nil {
 		return context.Parent.Description() + "." + context.Name
-	} else {
-		return context.Name
 	}
+	return context.Name
 }