dart2dart: Fixed treatment of dynamic type literals in new IR.

sdk/lib/_internal/compiler/implementation/dart_backend/dart_codegen.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 dart_codegen;
 
 import 'dart_tree.dart' as tree;
 import 'dart_printer.dart';
 import 'dart_tree_printer.dart' show TreePrinter;
 import '../tree/tree.dart' as frontend;
@@ skipping 612 matching lines @@
 
   Expression visitConcatenate(ConcatenateConstExp exp) {
     return new StringConcat(exp.arguments.map(visit).toList(growable: false));
   }
 
   Expression visitSymbol(SymbolConstExp exp) {
     return new LiteralSymbol(exp.name);
   }
 
   Expression visitType(TypeConstExp exp) {
-    return new LiteralType(exp.element.name)
-               ..element = exp.element;
+    DartType type = exp.type;
+    return new LiteralType(type.name)
+               ..type = type;
   }
 
   Expression visitVariable(VariableConstExp exp) {
     String name = parent.getConstantName(exp.element);
     return new Identifier(name)
                ..element = exp.element;
   }
 
   Expression visitFunction(FunctionConstExp exp) {
     return new Identifier(exp.element.name)
                ..element = exp.element;
   }
 
 }