1 files changed, 21 insertions, 0 deletions
diff --git a/test/bugs/bug251.go b/test/bugs/bug251.go
new file mode 100644
index 000000000..f6365f1e6
--- /dev/null
+++ b/test/bugs/bug251.go
@@ -0,0 +1,21 @@
+// errchk $G $D/$F.go
+
+// Copyright 2010 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.
+
+package main
+
+type I1 interface {
+	m() I2
+	I2	// ERROR "loop|interface"
+}
+
+type I2 interface {
+	I1
+}
+
+
+var i1 I1 = i2
+var i2 I2
+var i2a I2 = i1