anchor.diff:         *  hash with the path so we can get the path later if only knowing the
          *  hash value.
          */
  -      String hash = _hashListToString(hash);
  -      _sourceCache[hash] = new Future.value(bytes);
  -      _hashToPathCache[hash] = path;
  +      String hashString = _hashListToString(hash);
  +      _sourceCache[hashString] = new Future.value(bytes);
  +      _hashToPathCache[hashString] = path;
         
         // Parse the file with the scanner and get dependencies
         Runes runes = (new String.fromCharCodes(bytes)).runes;
  
positive.code:              * it. If changeCache is true we are allowed to change the file
               * content cache and add the file content to this cache.
               */
              Future<List<int>> returnValue = Future.value(fileContent);
              if (changeCache) {
                _sourceCache[hash] = returnValue;  
              }
              return returnValue;
  
negative.code:   /**
     * This method exists because Windows don’t support symlinks (or similar 
     * feature) for files without additional permissions. Because of this 
     * restriction it is not possible to use the Dart class 
     * [Link](http://api.dartlang.org/docs/releases/latest/dart_io/Link.html) on 
     * Windows systems. The purpose of the method is therefore to use different 
     * implementation on different systems.
     * 
     * On Windows we use hardlinks because they are possible to use without 
     * additional permissions. Dart do not support creating hardlinks so we call 
     * the [:mklink:] command from the Windows cmd instead.
     * 
     * On all other systems we use the 
     * [Link](http://api.dartlang.org/docs/releases/latest/dart_io/Link.html) 
     * class to create symlinks.
     */
    static Future createLink(Path source, Path destination) {
      _log("Running createLink(${source.toString()}, ${destination.toString()})");
  