// errorcheck
// Copyright 2013 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
func main() {
_ = nil // ERROR "use of untyped nil"
_, _ = nil, 1 // ERROR "use of untyped nil"
_, _ = 1, nil // ERROR "use of untyped nil"
_ = append(nil, 1, 2, 3) // ERROR "untyped nil"
}