names = append(names, name)
		}
	}
	sort.Strings(names)
	return names
}

type runCmd func(...string) ([]byte, error)

func compileFile(runcmd runCmd, longname string, flags []string) (out []byte, err error) {
	cmd := []string{goTool, "tool", "compile", "-e", "-p=p", "-importcfg=" + stdlibImportcfgFile()}
	cmd = append(cmd, flags...)