1 files changed, 12 insertions, 0 deletions
diff --git a/test/fixedbugs/issue6406.go b/test/fixedbugs/issue6406.go
new file mode 100644
index 000000000..5491193ef
--- /dev/null
+++ b/test/fixedbugs/issue6406.go
@@ -0,0 +1,12 @@
+// errorcheck
+
+// Copyright 2014 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
+
+func main() {
+	s = "bob" // ERROR "undefined.*s"
+	_ = s // ERROR "undefined.*s"
+}