Eliminate Modifier.TYPEDEF and deprecate ClassElement.isTypedef.

pkg/analyzer/lib/src/generated/error_verifier.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.
 
 library engine.resolver.error_verifier;
 
+import 'dart:collection';
 import "dart:math" as math;
-import 'dart:collection';
 
 import 'package:analyzer/src/generated/static_type_analyzer.dart';
 
 import 'ast.dart';
 import 'constant.dart';
 import 'element.dart';
 import 'element_resolver.dart';
 import 'error.dart';
 import 'java_engine.dart';
 import 'parser.dart' show Parser, ParserErrorCode;
@@ skipping 4150 matching lines @@
    * the node to report problem on. The [mixinElement] is the mixing to
    * evaluate.
    *
    * See [CompileTimeErrorCode.MIXIN_INHERITS_FROM_NOT_OBJECT].
    */
   bool _checkForMixinInheritsNotFromObject(
       TypeName mixinName, ClassElement mixinElement) {
     InterfaceType mixinSupertype = mixinElement.supertype;
     if (mixinSupertype != null) {
       if (!mixinSupertype.isObject ||
-          !mixinElement.isTypedef && mixinElement.mixins.length != 0) {
+          !mixinElement.isMixinApplication && mixinElement.mixins.length != 0) {
         _errorReporter.reportErrorForNode(
             CompileTimeErrorCode.MIXIN_INHERITS_FROM_NOT_OBJECT, mixinName,
             [mixinElement.name]);
         return true;
       }
     }
     return false;
   }
 
   /**
@@ skipping 1781 matching lines @@
     toCheck.add(type.element);
     // type arguments
     if (type is InterfaceType) {
       InterfaceType interfaceType = type;
       for (DartType typeArgument in interfaceType.typeArguments) {
         _addTypeToCheck(typeArgument);
       }
     }
   }
 }