From 6a401339c113769be5339483bf134284292f03bc Mon Sep 17 00:00:00 2001
From: Luuk van Dijk <lvd@golang.org>
Date: Wed, 14 Dec 2011 08:21:37 +0100
Subject: [PATCH] gc: suppress non-root cause message for bad receivers.

Fixed issue 2500

R=rsc
CC=golang-dev
https://golang.org/cl/5485053
---
 src/cmd/gc/dcl.c         |  2 ++
 test/fixedbugs/bug384.go | 12 ++++++++++++
 2 files changed, 14 insertions(+)
 create mode 100644 test/fixedbugs/bug384.go

diff --git a/src/cmd/gc/dcl.c b/src/cmd/gc/dcl.c
index 235e2ceff4..f9f638ceb1 100644
--- a/src/cmd/gc/dcl.c
+++ b/src/cmd/gc/dcl.c
@@ -1273,6 +1273,8 @@ addmethod(Sym *sf, Type *t, int local)
 				t = t->type;
 			}
 		}
+		if(t->broke) // rely on typecheck having complained before
+			return;
 		if(t != T) {
 			if(t->sym == S) {
 				yyerror("invalid receiver type %T (%T is an unnamed type)", pa, t);
diff --git a/test/fixedbugs/bug384.go b/test/fixedbugs/bug384.go
new file mode 100644
index 0000000000..b3d6466882
--- /dev/null
+++ b/test/fixedbugs/bug384.go
@@ -0,0 +1,12 @@
+// errchk $G $D/$F.go
+
+// Copyright 2011 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 file.
+
+// Issue 2500
+
+package foo
+
+// Check that we only get root cause message, no further complaints about r undefined
+func (r *indexWriter) foo() {}  // ERROR "undefined.*indexWriter"