Allow "dynamic" as a constant value in analyzer.

pkg/analyzer/lib/src/generated/constant.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.constant;
 
 import 'dart:collection';
@@ skipping 1610 matching lines @@
       }
     } else if (element is ExecutableElement) {
       ExecutableElement function = element;
       if (function.isStatic) {
         ParameterizedType functionType = function.type;
         if (functionType == null) {
           functionType = _typeProvider.functionType;
         }
         return new DartObjectImpl(functionType, new FunctionState(function));
       }
-    } else if (element is ClassElement || element is FunctionTypeAliasElement) {
+    } else if (element is ClassElement ||
+        element is FunctionTypeAliasElement ||
+        element is DynamicElementImpl) {
       return new DartObjectImpl(_typeProvider.typeType, new TypeState(element));
     }
     // TODO(brianwilkerson) Figure out which error to report.
     _error(node, null);
     return null;
   }
 
   DartObjectImpl _validWithUnknownValue(InterfaceType type) {
     if (type.element.library.isDartCore) {
       String typeName = type.name;
@@ skipping 3378 matching lines @@
    */
   TypeState(this._element);
 
   @override
   int get hashCode => _element == null ? 0 : _element.hashCode;
 
   @override
   String get typeName => "Type";
 
   @override
+  Element get value => _element;
+
+  @override
   bool operator ==(Object object) =>
       object is TypeState && (_element == object._element);
 
   @override
   StringState convertToString() {
     if (_element == null) {
       return StringState.UNKNOWN_VALUE;
     }
     return new StringState(_element.name);
   }
@@ skipping 17 matching lines @@
       return BoolState.from(_element == rightElement);
     } else if (rightOperand is DynamicState) {
       return BoolState.UNKNOWN_VALUE;
     }
     return BoolState.FALSE_STATE;
   }
 
   @override
   String toString() => _element == null ? "-unknown-" : _element.name;
 }