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Filename : rewrite5.input

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//gofmt -r=x+x->2*x

// 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.

// Rewriting of expressions containing nodes with associated comments to
// expressions without those nodes must also eliminate the associated
// comments.

package p

func f(x int) int {
	_ = x + x // this comment remains in the rewrite
	_ = x /* this comment must not be in the rewrite */ + x
	return x /* this comment must not be in the rewrite */ + x
}