file, err := syntax.Parse(base, r, errh, nil, mode)
		if file == nil {
			t.Fatalf("%s: %s", filename, err)
		}
		files = append(files, file)
	}
	return files, errlist
}

func unpackError(err error) (syntax.Pos, string) {
	switch err := err.(type) {
	case syntax.Error:
		return err.Pos, err.Msg
	case Error:
		return err.Pos, err.Msg
	default:
		return nopos, err.Error()
	}
}

				for _, err := range list {
					errlist = append(errlist, err)
				}
			} else {
				errlist = append(errlist, err)
			}
		}
	}
	return files, errlist
}

func unpackError(fset *token.FileSet, err error) (token.Position, string) {
	switch err := err.(type) {
	case *scanner.Error:
		return err.Pos, err.Msg
	case Error:
		return fset.Position(err.Pos), err.Msg
	}
	panic("unreachable")