| // compile | |
| // Copyright 2022 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. | |
| // Issue 52846: gofrontend crashed with alias as map key type | |
| package p | |
| type S struct { | |
| F string | |
| } | |
| type A = S | |
| var M = map[A]int{A{""}: 0} |