// errorcheck -0 -l -d=wb
// Copyright 2015 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.
// Test write barrier for implicit assignments to result parameters
// that have escaped to the heap.
package issue13587
import "errors"
func escape(p *error)
func F() (err error) {
escape(&err)
return errors.New("error") // ERROR "write barrier"
}