1 files changed, 15 insertions, 0 deletions
diff --git a/test/fixedbugs/issue6004.go b/test/fixedbugs/issue6004.go
new file mode 100644
index 0000000..2b3dcd9
--- /dev/null
+++ b/test/fixedbugs/issue6004.go
@@ -0,0 +1,15 @@
+// errorcheck
+
+// Copyright 2013 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() {
+	_ = nil // ERROR "use of untyped nil"
+	_, _ = nil, 1 // ERROR "use of untyped nil"
+	_, _ = 1, nil // ERROR "use of untyped nil"
+	_ = append(nil, 1, 2, 3) // ERROR "untyped nil"
+}
+