Use JS backend in serialization_analysis_test

pkg/compiler/lib/src/serialization/modelz.dart

 // Copyright (c) 2015, 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.
 
 /// Implementation of the element model used for deserialiation.
 ///
 /// These classes are created by [ElementDeserializer] triggered by the
 /// [Deserializer].
 
 library dart2js.serialization.modelz;
@@ skipping 62 matching lines @@
 
   @override
   Scope buildScope() => _unsupported('analyzableElement');
 
   @override
   CompilationUnitElement get compilationUnit {
     return _unsupported('compilationUnit');
   }
 
   @override
-  ClassElement get contextClass => _unsupported('contextClass');
-
-  @override
   ClassElement get enclosingClass => null;
 
   @override
   Element get enclosingClassOrCompilationUnit {
     return _unsupported('enclosingClassOrCompilationUnit');
   }
 
   @override
-  String get fixedBackendName => _unsupported('fixedBackendName');
-
-  @override
   LibraryElement get implementationLibrary => library;
 
   @override
   bool get isAbstract => false;
 
   @override
   bool get isAssignable => _unsupported('isAssignable');
 
   @override
   bool get isClassMember => false;
@@ skipping 419 matching lines @@
   CompilationUnitElementZ(ObjectDecoder decoder)
       : super(decoder);
 
   @override
   ElementKind get kind => ElementKind.COMPILATION_UNIT;
 
   @override
   CompilationUnitElement get compilationUnit => this;
 
   @override
+  Element get enclosingElement => library;
+
+  @override
   accept(ElementVisitor visitor, arg) {
     return visitor.visitCompilationUnitElement(this, arg);
   }
 
   @override
   void forEachLocalMember(f(Element element)) {
     if (_members == null) {
       _members =
           _decoder.getElements(Key.ELEMENTS, isOptional: true);
     }
@@ skipping 173 matching lines @@
     if (_parameters == null) {
       _parameters = _decoder.getElements(Key.PARAMETERS, isOptional: true);
     }
     return _parameters;
   }
 }
 
 abstract class FunctionTypedElementMixin
     implements FunctionElement, DeserializedElementZ {
   @override
-  AsyncMarker get asyncMarker => _unsupported('');
-
-  @override
-  bool get isExternal => _unsupported('');
+  AsyncMarker get asyncMarker => _unsupported('asyncMarker');
 
   @override
   FunctionElement asFunctionElement() => this;
+
+  @override
+  bool get isExternal {
+    return _decoder.getBool(
+        Key.IS_EXTERNAL, isOptional: true, defaultValue: false);
+  }
 }
 
 class ClassElementZ extends DeserializedElementZ
     with AnalyzableElementMixin,
          AstElementMixin,
          ClassElementCommon,
          class_members.ClassMemberMixin,
          ContainerMixin,
          LibraryMemberMixin,
          TypeDeclarationMixin<InterfaceType>
@@ skipping 133 matching lines @@
 
   @override
   ClassElement get superclass => supertype != null ? supertype.element : null;
 
   @override
   void ensureResolved(Resolution resolution) {
     resolution.registerClass(this);
   }
 }
 
+
+class EnumClassElementZ extends ClassElementZ implements EnumClassElement {
+  List<FieldElement> _enumValues;
+
+  EnumClassElementZ(ObjectDecoder decoder)
+      : super(decoder);
+
+  @override
+  bool get isEnumClass => true;
+
+  @override
+  List<FieldElement> get enumValues {
+    if (_enumValues == null) {
+      _enumValues = _decoder.getElements(Key.FIELDS);
+    }
+    return _enumValues;
+  }
+}
+
 abstract class ConstructorElementZ extends DeserializedElementZ
     with AnalyzableElementMixin,
          AstElementMixin,
          ClassMemberMixin,
          FunctionTypedElementMixin,
          ParametersMixin,
          TypedElementMixin,
          MemberElementMixin
     implements ConstructorElement {
   ConstantConstructor _constantConstructor;
@@ skipping 49 matching lines @@
   ConstructorElement get effectiveTarget  {
     return _unsupported('effectiveTarget');
   }
 
   @override
   ConstructorElement get immediateRedirectionTarget  {
     return _unsupported('immediateRedirectionTarget');
   }
 
   @override
+  bool get isEffectiveTargetMalformed {
+    return _unsupported('isEffectiveTargetMalformed');
+  }
+
+  @override
   bool get isRedirectingFactory => _unsupported('isRedirectingFactory');
 
   @override
   bool get isRedirectingGenerative => _unsupported('isRedirectingGenerative');
 
   @override
   bool get isCyclicRedirection => _unsupported('isCyclicRedirection');
 
   @override
   PrefixElement get redirectionDeferredPrefix  {
@@ skipping 578 matching lines @@
   }
 
   @override
   ElementKind get kind => ElementKind.PREFIX;
 
   @override
   Element lookupLocalMember(String memberName) {
     return _unsupported('lookupLocalMember');
   }
 }