code: func (p Parser) ConfigDirFiles(dir string) (primary, override []string, diags hcl.Diagnostics) {
  	return p.dirFiles(dir)
  }
docs: // ConfigDirFiles returns lists of the primary and override files configuration
  // files in the given directory.
  //
  // If the given directory does not exist or cannot be read, error diagnostics
  // are returned. If errors are returned, the resulting lists may be incomplete.