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

sdk/lib/_internal/compiler/implementation/dart_backend/dart_tree_printer.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_tree_printer;
 
 import 'dart_printer.dart';
 import '../tree/tree.dart' as tree;
 import '../scanner/scannerlib.dart';
 import '../util/util.dart';
@@ skipping 476 matching lines @@
           typeArgs,
           braceList(',', exp.entries.map(makeLiteralMapEntry)),
           exp.isConst ? constToken : null);
     } else if (exp is LiteralSymbol) {
       precedence = PRIMARY;
       result = new tree.LiteralSymbol(
           hash,
           makeList('.', exp.id.split('.').map(makeIdentifier)));
     } else if (exp is LiteralType) {
       precedence = TYPE_LITERAL;
+      elements.Element optionalElement = exp.type.element;
       result = new tree.Send(
-          makeStaticReceiver(exp.element),
+          optionalElement == null ? null : makeStaticReceiver(optionalElement),
           makeIdentifier(exp.name));
-      setElement(result, exp.element, exp);
+      treeElements.setType(result, exp.type);
+      if (optionalElement != null) { // dynamic does not have an element
+        setElement(result, optionalElement, exp);
+      }
     } else if (exp is ReifyTypeVar) {
       precedence = PRIMARY;
       result = new tree.Send(
           null,
           makeIdentifier(exp.name));
       setElement(result, exp.element, exp);
     } else if (exp is StringConcat) {
       precedence = PRIMARY;
       result = unparseStringLiteral(exp);
     } else if (exp is This) {
@@ skipping 493 matching lines @@
             printStringChunk(chunk.previous),
             node);
       } else {
         return node;
       }
     }
     return printStringChunk(output.chunk);
   }
 
 }