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// errorcheck
// Copyright 2009 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
type I interface { m() }
type T struct { m func() }
type M struct {}
func (M) m() {}
func main() {
var t T
var m M
var i I
i = m
i = t // ERROR "not a method|has no methods" "does not implement I"
_ = i
}