// errorcheck // Copyright 2018 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 p type intAlias = int func f() { switch interface{}(nil) { case uint8(0): case byte(0): // ERROR "duplicate case" case int32(0): case rune(0): // ERROR "duplicate case" case int(0): case intAlias(0): // ERROR "duplicate case" } }