anchor.diff:    }
   
     void test_visitListLiteral_unresolved() {
  -    _analyzer = _createAnalyzer(strongMode: true);
       // [a] // where 'a' is not resolved
       Identifier identifier = AstTestFactory.identifier3('a');
       Expression node = AstTestFactory.listLiteral([identifier]);
  
positive.code:   /**
     * Create the analyzer used by the tests.
     */
    StaticTypeAnalyzer _createAnalyzer({bool strongMode: false}) {
      AnalysisContext context;
      if (strongMode) {
        AnalysisOptionsImpl options = new AnalysisOptionsImpl();
        context = TestAnalysisContext();
      } else {
        context = TestAnalysisContext();
      }
      var inheritance = new InheritanceManager3(context.typeSystem);
      Source source = new FileSource(getFile("/lib.dart"));
      CompilationUnitElementImpl definingCompilationUnit =
  
negative.code: import 'package:analyzer/src/dart/element/inheritance_manager3.dart';
  import 'package:analyzer/src/dart/element/type.dart';
  import 'package:analyzer/src/error/codes.dart';
  import 'package:analyzer/src/generated/resolver.dart';
  import 'package:analyzer/src/generated/source.dart';
  import 'package:analyzer/src/generated/static_type_analyzer.dart';
  