test: commentary for [h-m]*.go

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5674112
diff --git a/test/method1.go b/test/method1.go
index bbbdbfa..365b8ca 100644
--- a/test/method1.go
+++ b/test/method1.go
@@ -4,6 +4,9 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// Verify that method redeclarations are caught by the compiler.
+// Does not compile.
+
 package main
 
 type T struct { }