/usr/share/go-1.7/test/syntax/semi4.go is in golang-1.7-src 1.7.4-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 | // errorcheck
// Copyright 2010 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
func main() {
for x // GCCGO_ERROR "undefined"
{ // ERROR "missing .*{.* after for clause|missing operand"
z // GCCGO_ERROR "undefined"
|