anchor.diff:        bool hasImplicitGetter,
         bool hasImplicitSetter,
         int transformerFlags: 0,
  -      this.fileUri,
  +      Uri fileUri,
         Reference reference})
  -      : super(name, reference) {
  +      : super(name, fileUri, reference) {
       assert(type != null);
       initializer?.parent = this;
       this.isCovariant = isCovariant;
  
positive.code:   void setTransformerFlagsWithoutLazyLoading(int newValue) {
      super.transformerFlags = newValue;
    }
  
    /// The uri of the source file this procedure was loaded from.
    Uri fileUri;
  
    Reference forwardingStubSuperTargetReference;
    Reference forwardingStubInterfaceTargetReference;
  
negative.code: }
  
  abstract class FileUriNode extends TreeNode {
    /// The URI of the source file this node was loaded from.
    Uri get fileUri;
  }
  
  