anchor.diff:     * and create a new entry.
      */
     void createIndexForEntry(FileStatus status) {
  -    deleteIndexForEntry(status);
  +    deleteIndexForEntry(status.path);
       status.type = FileStatusType.COMMITTED;
       updateIndexForEntry(status);
     }
  
positive.code:   }
  
    Future updateIndex() {
      return walkFilesAndUpdateIndex(_store.root);
    }
  
    /**
  
negative.code:            }
           }
        }).then((_) {
           return filePaths;
         });
      });
    }
  
  