Remove element from DynamicType.

sdk/lib/_internal/compiler/implementation/mirrors/dart2js_mirrors.dart

 // Copyright (c) 2012, 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 dart2js.mirrors;
 
 import 'dart:collection' show UnmodifiableListView, UnmodifiableMapView;
 
 import '../elements/elements.dart';
 import '../scanner/scannerlib.dart';
@@ skipping 290 matching lines @@
     _ensureLibraries();
     return _filteredLibraries;
   }
 
   Dart2JsLibraryMirror _getLibrary(LibraryElement element) =>
       _libraryMap[element];
 
   Dart2JsMirrorSystem get mirrorSystem => this;
 
   TypeMirror get dynamicType =>
-      _convertTypeToTypeMirror(compiler.types.dynamicType);
+      _convertTypeToTypeMirror(const DynamicType());
 
   TypeMirror get voidType =>
       _convertTypeToTypeMirror(const VoidType());
 
   TypeMirror _convertTypeToTypeMirror(DartType type) {
     assert(type != null);
     if (type.treatAsDynamic) {
       return new Dart2JsDynamicMirror(this, type);
     } else if (type is InterfaceType) {
       if (type.typeArguments.isEmpty) {
@@ skipping 167 matching lines @@
         node, variable._variable.treeElements, variable.mirrorSystem);
   }
 
   static ResolvedNode defaultValueSyntaxOf(Dart2JsParameterMirror parameter) {
     if (!parameter.hasDefaultValue) return null;
     var node = parameter._element.initializer;
     var treeElements = parameter._element.treeElements;
     return new ResolvedNode(node, treeElements, parameter.mirrorSystem);
   }
 }