golang ifacemethod2 代码
文件路径：/src/cmd/link/internal/ld/testdata/deadcode/ifacemethod2.go
// Copyright 2020 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.
// Test that a method *is* live if it matches an interface
// method and the type is "indirectly" converted to an
// interface through reflection.
package main
import "reflect"
type I interface{ M() }
type T int
func (T) M() { println("XXX") }
func main() {
e := reflect.ValueOf([]T{1}).Index(0).Interface()
e.(I).M()
}