golang a 代码
文件路径：/test/fixedbugs/issue15548.dir/a.go
/ 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.
package a
type I0 interface {
I1
}
type T struct {
I1
}
type I1 interface {
M(*T) / removing * makes crash go away
}