anchor.diff:     *
      * Parameters
      *
  -   * file ( FilePath )
  +   * file (FilePath)
      *
      *   The file in which navigation information is being requested.
      *
  -   * offset ( int )
  +   * offset (int)
      *
      *   The offset of the region for which navigation information is being
      *   requested.
      *
  -   * length ( int )
  +   * length (int)
      *
      *   The length of the region for which navigation information is being
      *   requested.
      *
      * Returns
      *
  -   * files ( List<FilePath> )
  +   * files (List<FilePath>)
      *
      *   A list of the paths of files that are referenced by the navigation
      *   targets.
      *
  -   * targets ( List<NavigationTarget> )
  +   * targets (List<NavigationTarget>)
      *
      *   A list of the navigation targets that are referenced by the navigation
      *   regions.
      *
  -   * regions ( List<NavigationRegion> )
  +   * regions (List<NavigationRegion>)
      *
      *   A list of the navigation regions within the requested region of the
      *   file.
  
positive.code:    *
     * Parameters
     *
     * directories ( List<FilePath> )
     *
     *   A list of the paths of the files that are being analyzed.
     */
  
negative.code:    *
     * Returns
     *
     * version (String)
     *
     *   The version number of the analysis server.
     */
  