golang go1_13 代码
文件路径：/src/cmd/compile/internal/types2/testdata/check/go1_13.go
/ -lang=go1.13
/ Copyright 2021 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.
/ Check Go language version-specific errors.
package p
/ interface embedding
type I interface { m() }
type _ interface {
m()
I / ERROR "duplicate method m"
}
type _ interface {
I
I / ERROR "duplicate method m"
}