golang b 代码
文件路径：/test/fixedbugs/issue18911.dir/b.go
/ Copyright 2018 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
import "./a"
import "strings"
func main() {
defer func() {
p, ok := recover().(error)
if ok && strings.Contains(p.Error(), "different packages") {
return
}
panic(p)
}()
/ expected to fail and report two identical looking (but different) types
_ = a.X.(struct{ x int })
}