go/test/fixedbugs/bug342.go

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// errorcheck
// Copyright 2011 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.
// Issue 1871.
package p
type a interface {
foo(x int) (x int) // ERROR "duplicate argument|redefinition|redeclared"
}
/*
Previously:
bug.go:1 x redclared in this block
previous declaration at bug.go:1
*/