anchor.diff:  import 'dart:convert' show JSON;
   
   import 'package:archive/archive.dart' as arc;
  +import 'package:bower_semver/bower_semver.dart' as semver;
   import 'package:chrome/chrome_app.dart' as chrome;
   import 'package:logging/logging.dart';
  -import 'package:bower_semver/bower_semver.dart' as semver;
   
   import '../enum.dart';
   import '../jobs.dart';
  
positive.code:     _unresolvedDepsComments.clear();
      _ignoredDepsComments.clear();
  
      return _discoverAllDeps(
          _readLocalSpecFile(specFile), 'top package'
      ).then((_) {
        return _fetchAllDeps(mode);
      }).then((deps) {
        _maybePrintResolutionComments();
        return deps;
      });
    }
  
    /**
  
negative.code:             if (package.isResolved) {
                return _discoverAllDeps(
                    _readRemoteSpecFile(package),
                    '$pathDescription -> ${package.resolvedFullPath}'
                );
              } else {
                return new Future.value();
  