anchor.diff:    }
   
     Future<void> test_compute_updateImports() async {
  -    var corePath = convertPath('/sdk/lib/core/core.dart');
  -
       var aPath = convertPath('/workspace/dart/test/lib/a.dart');
       newFile(aPath, content: r'''
   class A {}
   ''');
   
  -    _createFileResolver();
       await _compute(r'''
   var a = ^;
   ''');
  -    _assertComputedImportedLibraries([corePath]);
  +    _assertComputedImportedLibraries([], hasCore: true);
       _assertHasClass(text: 'String');
   
       // Repeat the query, still has 'A'.
  
positive.code: ^
  ''';
  
      _createFileResolver();
      await _compute(content);
      _assertComputedImportedLibraries([corePath, aPath]);
      _assertHasClass(text: 'A');
  
      // Repeat the query, still has 'A'.
  
negative.code:   }
  
    Future<void> test_compute_updateImportedLibrary() async {
      var aPath = convertPath('/workspace/dart/test/lib/a.dart');
      newFile(aPath, content: r'''
  class A {}
  