anchor.diff:            bytes = assembler.assemble().toBuffer();
           }
           PackageBundle linked = new PackageBundle.fromBuffer(bytes);
  -        node.linked = linked;
           store.addBundle(null, linked);
           _byteStore.put(key, bytes);
         });
  
positive.code:   @override
    int get hashCode => uri.hashCode;
  
    bool get isReady => linked != null;
  
    String get linkedHash {
      _linkedHash ??= driver._linkedHashMap.putIfAbsent(uri, () {
        computeTransitiveDependencies();
  
negative.code:   List<_LibraryNode> _dependencies;
    String _linkedHash;
  
    _LibraryNode(this.driver, this.nodes, this.uri);
  
    /**
  