golang p 代码
文件路径：/test/fixedbugs/issue22877.dir/p.go
// Copyright 2017 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
type S struct{ i int }
type SS = S
func sub()
func main() {
sub()
}