// errorcheck // 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. package main import "bytes" type _ struct{ bytes.nonexist } // ERROR "unexported|undefined" type _ interface{ bytes.nonexist } // ERROR "unexported|undefined" func main() { var _ bytes.Buffer var _ bytes.buffer // ERROR "unexported|undefined" }