anchor.diff:        resourceProvider: PhysicalResourceProvider.INSTANCE,
       );
       var context = collection.contexts[0];
  -    // Set the DeclarationsTracker, only call doWork to build up the available
  -    // suggestions if doComputeCompletionsFromAnalysisServer is true.
  -    // TODO(brianwilkerson) Add a flag to control whether available suggestions
  -    //  are to be used.
  -    var declarationsTracker = DeclarationsTracker(
  -        MemoryByteStore(), PhysicalResourceProvider.INSTANCE);
  -    declarationsTracker.addContext(context);
  -    while (declarationsTracker.hasWork) {
  -      declarationsTracker.doWork();
  -    }
  +//    // Set the DeclarationsTracker, only call doWork to build up the available
  +//    // suggestions if doComputeCompletionsFromAnalysisServer is true.
  +//    // TODO(brianwilkerson) Add a flag to control whether available suggestions
  +//    //  are to be used.
  +//    var declarationsTracker = DeclarationsTracker(
  +//        MemoryByteStore(), PhysicalResourceProvider.INSTANCE);
  +//    declarationsTracker.addContext(context);
  +//    while (declarationsTracker.hasWork) {
  +//      declarationsTracker.doWork();
  +//    }
   
       // Loop through each file, resolve the file and call
       // forEachExpectedCompletion
  
positive.code:       ResolvedUnitResult resolvedUnitResult,
        int offset,
        CompletionMetrics metrics,
        [DeclarationsTracker declarationsTracker,
        bool useNewRelevance = false]) async {
      var completionRequestImpl = CompletionRequestImpl(
        resolvedUnitResult,
        offset,
  
negative.code:     var suggestions =
          await DartCompletionManager().computeSuggestions(completionRequestImpl);
  
  //    // If a non-null declarationsTracker was passed, use it to call
  //    // computeIncludedSetList, this current implementation just adds the set of
  //    // included element names with relevance 0, future implementations should
  //    // compute out the relevance that clients will set to each value.
  //    if (declarationsTracker != null) {
  //      var includedSuggestionSets = <IncludedSuggestionSet>[];
  //      var includedElementNames = <String>{};
  //
  //      computeIncludedSetList(declarationsTracker, resolvedUnitResult,
  //          includedSuggestionSets, includedElementNames);
  //
  //      for (var eltName in includedElementNames) {
  //        suggestions.add(CompletionSuggestion(
  //            CompletionSuggestionKind.INVOCATION,
  //            0,
  //            eltName,
  //            0,
  //            eltName.length,
  //            false,
  //            false));
  //      }
  //    }
      stopwatch.stop();
      metrics.meanCompletionMS.addValue(stopwatch.elapsedMilliseconds);
  
  