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// compile
// Copyright 2019 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 p
var (
x int
xs []int
)
func a([]int) (int, error)
func b() (int, error) {
return a(append(xs, x))
}
func c(int, error) (int, error)
func d() (int, error) {
return c(b())
}
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