anchor.diff:    external static _statSync(_Namespace namespace, String path);
   
     /**
  -   * Calls the operating system's stat() function on [path].
  -   *
  -   * Returns a [FileStat] object containing the data returned by stat().
  -   * If the call fails, returns a [FileStat] object with .type set to
  -   * FileSystemEntityType.notFound and the other fields invalid.
  +   * Calls the operating system's `stat()` function (or equivalent) on [path].
  +   *
  +   * Returns a [FileStat] object containing the data returned by `stat()`.
  +   * If the call fails, returns a [FileStat] object with [FileStat.type] set to
  +   * [FileSystemEntityType.notFound] and the other fields invalid.
      */
     static FileStat statSync(String path) {
       final IOOverrides overrides = IOOverrides.current;
  
positive.code:    *
     * Returns a [FileSystemEntityType].
     *
     * [FileSystemEntityType] has the constant instances file, directory,
     * link, and notFound.  [type] will return link only if the optional
     * named argument [followLinks] is false, and [path] points to a link.
     * If the path does not point to a file system object, or any other error
     * occurs in looking up the path, notFound is returned.  The only
     * error or exception that may be thrown is ArgumentError,
     * caused by passing the wrong type of arguments to the function.
     */
    static FileSystemEntityType typeSync(String path, {bool followLinks: true}) {
      return _getTypeSync(_toUtf8Array(path), followLinks);
  
negative.code:    * stat().
     *
     * If the call fails, completes the future with a [FileStat] object
     * with `.type` set to [FileSystemEntityType.notFound] and the other fields
     * invalid.
     */
    Future<FileStat> stat() => FileStat.stat(path);
  
  