golang sample 代码
文件路径：/src/cmd/compile/internal/syntax/testdata/sample.go
/ 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.
/ This is a sample test file illustrating the use
/ of error comments with the error test harness.
package p
/ The following are invalid error comments; they are
/ silently ignored. The prefix must be exactly one of
/ "/* ERROR " or "/ ERROR ".
/
/*ERROR*/
/*ERROR foo*/
/* ERRORfoo */
/* ERROR foo */
/ERROR
/ ERROR
/ ERRORfoo
/ ERROR foo
/ This is a valid error comment; it applies to the
/ immediately following token.
import "math" /* ERROR unexpected comma */ ,
/ If there are multiple /*-style error comments before
/ the next token, only the last one is considered.
type x = /* ERROR ignored */ /* ERROR literal 0 in type declaration */ 0
/ A /-style error comment matches any error position
/ on the same line.
func () foo() / ERROR method has no receiver