gRPC migration

Change-Id: Ib390f6dde0d5a8d6db12ccd7da41135570ad1354
diff --git a/vendor/github.com/google/go-cmp/cmp/report.go b/vendor/github.com/google/go-cmp/cmp/report.go
index 6ddf299..f43cd12 100644
--- a/vendor/github.com/google/go-cmp/cmp/report.go
+++ b/vendor/github.com/google/go-cmp/cmp/report.go
@@ -1,6 +1,6 @@
 // Copyright 2017, The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE.md file.
+// license that can be found in the LICENSE file.
 
 package cmp
 
@@ -41,7 +41,10 @@
 	if r.root.NumDiff == 0 {
 		return ""
 	}
-	return formatOptions{}.FormatDiff(r.root).String()
+	ptrs := new(pointerReferences)
+	text := formatOptions{}.FormatDiff(r.root, ptrs)
+	resolveReferences(text)
+	return text.String()
 }
 
 func assert(ok bool) {