anchor.diff:  
       if (declarationsTracker == null) {
         // available suggestions == false
  -      suggestions =
  -          await DartCompletionManager().computeSuggestions(completionRequest);
  +      suggestions = await DartCompletionManager(
  +              dartdocDirectiveInfo: DartdocDirectiveInfo())
  +          .computeSuggestions(completionRequest);
       } else {
         // available suggestions == true
         var includedElementKinds = <ElementKind>{};
  
positive.code:           <IncludedSuggestionRelevanceTag>[];
        var includedSuggestionSetList = <IncludedSuggestionSet>[];
        suggestions = await DartCompletionManager(
                includedElementKinds: includedElementKinds,
                includedElementNames: includedElementNames,
                includedSuggestionRelevanceTags:
  
negative.code: import 'package:analyzer/file_system/physical_file_system.dart';
  import 'package:analyzer/src/dart/analysis/byte_store.dart';
  import 'package:analyzer/src/dart/analysis/driver_based_analysis_context.dart';
  import 'package:analyzer/src/dartdoc/dartdoc_directive_info.dart';
  import 'package:analyzer/src/generated/engine.dart';
  import 'package:analyzer/src/services/available_declarations.dart';
  import 'package:args/args.dart';
  