dart2js cps: Handle error cases.

pkg/compiler/lib/src/resolution/semantic_visitor.dart

 // Copyright (c) 2015, 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.semantics_visitor;
 
 import '../constants/expressions.dart';
 import '../dart2jslib.dart' show invariant, MessageKind;
 import '../dart_types.dart';
 import '../elements/elements.dart';
@@ skipping 3032 matching lines @@
   /// For instance
   ///   m() => new Unresolved(true, 42);
   ///
   /// where [type] is the malformed type `Unresolved`.
   ///
   // TODO(johnniwinther): Change [type] to [MalformedType] when is it not
   // `dynamic`.
   R visitUnresolvedClassConstructorInvoke(
       NewExpression node,
       Element element,
-      MalformedType type,
+      DartType type,
       NodeList arguments,
       Selector selector,
       A arg);
 
   /// Constant invocation of a non-constant constructor.
   ///
   /// For instance
   ///   class C {
   ///     C(a, b);
   ///   }
@@ skipping 584 matching lines @@
   ///       C() : this._(42);
   ///     }
   ///
   R errorUnresolvedThisConstructorInvoke(
       Send node,
       Element element,
       NodeList arguments,
       Selector selector,
       A arg);
 }