func contextName(c *build.Context) string {
	s := c.GOOS + "-" + c.GOARCH
	if c.CgoEnabled {
		s += "-cgo"
	}
	if c.Dir != "" {
		s += fmt.Sprintf(" [%s]", c.Dir)
	}
	return s
}

var internalPkg = regexp.MustCompile(`(^|/)internal($|/)`)

var exitCode = 0

func Check(t *testing.T) {
	checkFiles, err := filepath.Glob(filepath.Join(testenv.GOROOT(t), "api/go1*.txt"))
	if err != nil {
		t.Fatal(err)
	}