go/test/fixedbugs/bug398.go

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// $G $D/$F.go
// Copyright 2012 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.
// Used to crash compiler in interface type equality check.
package p
type I1 interface {
F() interface{I1}
}
type I2 interface {
F() interface{I2}
}
var v1 I1
var v2 I2
func f() bool {
return v1 == v2
}