Fix several tests when the new task model is enabled

pkg/analyzer/lib/src/generated/testing/element_factory.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library engine.testing.element_factory;
 
 import 'dart:collection';
 
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/constant.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/java_core.dart';
 import 'package:analyzer/src/generated/resolver.dart';
+import 'package:analyzer/src/generated/scanner.dart';
 import 'package:analyzer/src/generated/source.dart';
+import 'package:analyzer/src/generated/testing/ast_factory.dart';
 import 'package:analyzer/src/generated/utilities_dart.dart';
 import 'package:path/path.dart';
 
 /**
  * The class `ElementFactory` defines utility methods used to create elements for testing
  * purposes. The elements that are created are complete in the sense that as much of the element
  * model as can be created, given the provided information, has been created.
  */
 class ElementFactory {
   /**
@@ skipping 480 matching lines @@
   }
 
   static TopLevelVariableElementImpl topLevelVariableElement(Identifier name) =>
       new TopLevelVariableElementImpl.forNode(name);
 
   static TopLevelVariableElementImpl topLevelVariableElement2(String name) =>
       topLevelVariableElement3(name, false, false, null);
 
   static TopLevelVariableElementImpl topLevelVariableElement3(
       String name, bool isConst, bool isFinal, DartType type) {
-    TopLevelVariableElementImpl variable =
-        new TopLevelVariableElementImpl(name, -1);
+    TopLevelVariableElementImpl variable;
+    if (isConst) {
+      ConstTopLevelVariableElementImpl constant =
+          new ConstTopLevelVariableElementImpl(AstFactory.identifier3(name));
+      constant.constantInitializer = AstFactory.instanceCreationExpression2(
+          Keyword.CONST, AstFactory.typeName(type.element));
+      variable = constant;
+    } else {
+      variable = new TopLevelVariableElementImpl(name, -1);
+    }
     variable.const3 = isConst;
     variable.final2 = isFinal;
     variable.synthetic = true;
     PropertyAccessorElementImpl getter =
         new PropertyAccessorElementImpl.forVariable(variable);
     getter.getter = true;
     getter.synthetic = true;
     getter.variable = variable;
     getter.returnType = type;
     variable.getter = getter;
@@ skipping 11 matching lines @@
       setter.returnType = VoidTypeImpl.instance;
       setter.type = new FunctionTypeImpl(setter);
       variable.setter = setter;
     }
     return variable;
   }
 
   static TypeParameterElementImpl typeParameterElement(String name) =>
       new TypeParameterElementImpl(name, 0);
 }