anchor.diff:          | FastStage.NoData -> 
               // Only schedule an update on signature files
               if isSignatureExtension(Path.GetExtension(textDocument.FilePath)) then
  -                // If not yet schedule an action, do it now.
  +                // If not yet schedule an action, do it now. 
                   updateSyntaxConstructClassifiers false
               [||]
           | FastStage.Updating _ -> [||]
  
positive.code:                         let origSnapshot = columnSpan.Snapshot |> Option.getOrElse snapshot
                          let! span = fromRange origSnapshot (columnSpan.WordSpan.ToRange())
                          // Translate the span to the new snapshot
                          return clType, span.TranslateTo(newSnapshotSpan.Snapshot, SpanTrackingMode.EdgeExclusive) 
                      })
                  |> Seq.takeWhile (fun (_, span) -> span.Start.GetContainingLine().LineNumber <= spanEndLine)
                  |> Seq.map (fun (clType, span) -> ClassificationSpan(span, clType))
  
negative.code: [<NoComparison>]
  type private FastStage =
      | NoData
      | Updating of oldData:FastStageData option * snapshot: ITextSnapshot
      | Data of FastStageData 
  
  [<NoComparison>]
  