go source for verification 2026-05-22

test/fixedbugs/bug480.dir/a.go

@@ -0,0 +1,17 @@
+// 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 a
+
+type S interface{
+	F() T
+}
+
+type T struct {
+	S
+}
+
+type U struct {
+	error
+}

test/fixedbugs/bug480.dir/b.go

@@ -0,0 +1,13 @@
+// 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 b
+
+import "./a"
+
+var t a.T
+
+func F() error {
+	return a.U{}
+}