golang issue21253 代码
文件路径：/test/fixedbugs/issue21253.go
/ compile
/ 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.
/ Gccgo crashed compiling this code due to failing to finalize
/ interfaces in the right order.
package p
type s1 struct {
f m
I
}
type m interface {
Mm(*s2)
}
type s2 struct {
*s1
}
type I interface {
MI()
}