some analyzer fixes for compiler

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;
 
 import '../common.dart';
 import '../common/resolution.dart' show
     Resolution;
-import '../compiler.dart'
-    show Compiler;
 import '../constants/constructors.dart';
 import '../constants/expressions.dart';
 import '../core_types.dart';
 import '../dart_types.dart';
 import '../elements/elements.dart';
 import '../elements/modelx.dart' show
     FunctionSignatureX;
 import '../elements/common.dart';
 import '../elements/visitor.dart';
 import '../io/source_file.dart';
@@ skipping 62 matching lines @@
 
   @override
   Element get enclosingClassOrCompilationUnit {
     return _unsupported('enclosingClassOrCompilationUnit');
   }
 
   @override
   String get fixedBackendName => _unsupported('fixedBackendName');
 
   @override
-  bool get hasFixedBackendName => _unsupported('hasFixedBackendName');
-
-  @override
   LibraryElement get implementationLibrary => library;
 
   @override
   bool get isAbstract => false;
 
   @override
   bool get isAssignable => _unsupported('isAssignable');
 
   @override
   bool get isClassMember => false;
@@ skipping 13 matching lines @@
   @override
   bool get isInstanceMember => false;
 
   @override
   bool get isLocal => false;
 
   @override
   bool get isMixinApplication => false;
 
   @override
-  bool get isNative => false;
-
-  @override
-  bool get isJsInterop => false;
-
-  @override
-  String get jsInteropName => null;
-
-  @override
   bool get isOperator => false;
 
   @override
   bool get isStatic => false;
 
   // TODO(johnniwinther): Find a more precise semantics for this.
   @override
   bool get isSynthesized => true;
 
   @override
@@ skipping 214 matching lines @@
          ContainerMixin,
          LibraryElementCommon
     implements LibraryElement {
   Uri _canonicalUri;
   CompilationUnitElement _entryCompilationUnit;
   Link<CompilationUnitElement> _compilationUnits;
   List<ImportElement> _imports;
   List<ExportElement> _exports;
   ListedContainer _exportsMap;
   ListedContainer _importsMap;
-  Map<LibraryTag, LibraryElement> _libraryDependencies;
 
   LibraryElementZ(ObjectDecoder decoder)
       : super(decoder);
 
   @override
   ElementKind get kind => ElementKind.LIBRARY;
 
   @override
   Element get enclosingElement => null;
 
@@ skipping 67 matching lines @@
     }
     return element;
   }
 
   @override
   Element findLocal(String elementName) {
     return localLookup(elementName);
   }
 
   @override
-  bool get canUseNative => false;
-
-  @override
   Element findExported(String elementName) => _unsupported('findExported');
 
   void _ensureImports() {
     if (_importsMap == null) {
       _importsMap = new ListedContainer(_decoder.getElements(Key.IMPORT_SCOPE));
     }
   }
 
   @override
   void forEachImport(f(Element element)) {
@@ skipping 407 matching lines @@
   @override
   ConstructorElement lookupDefaultConstructor() {
     ConstructorElement constructor = lookupConstructor("");
     if (constructor != null && constructor.parameters.isEmpty) {
       return constructor;
     }
     return null;
   }
 
   @override
-  String get nativeTagInfo => _unsupported('nativeTagInfo');
-
-  @override
   void reverseBackendMembers() => _unsupported('reverseBackendMembers');
 
   @override
   ClassElement get superclass => supertype != null ? supertype.element : null;
 
   @override
   void ensureResolved(Resolution resolution) {
     resolution.registerClass(this);
   }
 }
@@ skipping 658 matching lines @@
   }
 
   @override
   ElementKind get kind => ElementKind.PREFIX;
 
   @override
   Element lookupLocalMember(String memberName) {
     return _unsupported('lookupLocalMember');
   }
 }