// errorcheck
// Copyright 2017 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 p
type A interface {
// TODO(mdempsky): This should be an error, but this error is
// nonsense. The error should actually mention that there's a
// type loop.
Fn(A.Fn) // ERROR "type A has no method Fn"
}