go/test/typeparam/issue46461.go

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// errorcheck
// Copyright 2021 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 T[U interface{ M() T[U] }] int // ERROR "invalid recursive type T"
type X int
func (X) M() T[X] { return 0 }