golang bug488 代码
文件路径：/test/fixedbugs/bug488.go
/ errorcheckdir
/ Copyright 2014 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.
/ The gccgo compiler had a bug: if one file in a package did a dot
/ import, then an earlier file in the package would incorrectly
/ resolve to the imported names rather than reporting undefined
/ errors.
package ignored