wspr: Regenerate VDL due to go/vcl/8494

Change-Id: I5db1044bffd96b99c1958b2401279977a2ca9b21
MultiPart: 5/8
diff --git a/services/wsprd/channel/channel.vdl b/services/wsprd/channel/channel.vdl
index caf98f1..8f27c0a 100644
--- a/services/wsprd/channel/channel.vdl
+++ b/services/wsprd/channel/channel.vdl
@@ -12,7 +12,7 @@
 	Body   any
 }
 
-type Message oneof {
+type Message union {
 	Request  Request
 	Response Response
 }
diff --git a/services/wsprd/channel/channel.vdl.go b/services/wsprd/channel/channel.vdl.go
index 4cbf3ca..ead937b 100644
--- a/services/wsprd/channel/channel.vdl.go
+++ b/services/wsprd/channel/channel.vdl.go
@@ -32,7 +32,7 @@
 }
 
 type (
-	// Message represents any single field of the Message oneof type.
+	// Message represents any single field of the Message union type.
 	Message interface {
 		// Index returns the field index.
 		Index() int
@@ -40,18 +40,18 @@
 		Interface() interface{}
 		// Name returns the field name.
 		Name() string
-		// __VDLReflect describes the Message oneof type.
+		// __VDLReflect describes the Message union type.
 		__VDLReflect(__MessageReflect)
 	}
-	// MessageRequest represents field Request of the Message oneof type.
+	// MessageRequest represents field Request of the Message union type.
 	MessageRequest struct{ Value Request }
-	// MessageResponse represents field Response of the Message oneof type.
+	// MessageResponse represents field Response of the Message union type.
 	MessageResponse struct{ Value Response }
-	// __MessageReflect describes the Message oneof type.
+	// __MessageReflect describes the Message union type.
 	__MessageReflect struct {
 		Name  string "veyron.io/wspr/veyron/services/wsprd/channel.Message"
 		Type  Message
-		OneOf struct {
+		Union struct {
 			Request  MessageRequest
 			Response MessageResponse
 		}