anchor.diff:            count == 1 ? '(1 modification)' : '($count modifications)';
         bool isNotCurrent = unit != currentUnit;
         links.add({
  -        'name': _computeName(unit),
  +        'name': computeName(unit),
           'modificationCount': modificationCount,
           'isLink': isNotCurrent,
           if (isNotCurrent) 'href': _pathTo(target: unit, source: currentUnit)
  
positive.code:       'root': migrationInfo.includedRoot,
        'units': <Map<String, dynamic>>[],
        'dartPageStyle': dartPageStyle,
        'thisUnit': migrationInfo._computeName(unitInfo),
        'links': migrationInfo.unitLinks(unitInfo),
        'highlightJsPath': migrationInfo.highlightJsPath(unitInfo),
        'highlightStylePath': migrationInfo.highlightStylePath(unitInfo),
  
negative.code: 
    /// Return the path to [unit] from [includedRoot], to be used as a display
    /// name for a library.
    String computeName(UnitInfo unit) =>
        pathContext.relative(unit.path, from: includedRoot);
  
    /// The path to [target], relative to [from].
  