golang issue15470 代码
文件路径：/test/fixedbugs/issue15470.go
/ compiledir
/ Copyright 2016 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.
/ Issue 15470: Make sure special-case signatures can
/ be exported and imported w/o problems.
package ignored