Test closed world model after deserialization.

pkg/compiler/lib/src/serialization/element_serialization.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.serialization.elements;
 
 import '../common.dart';
 import '../constants/constructors.dart';
 import '../constants/expressions.dart';
 import '../dart_types.dart';
@@ skipping 290 matching lines @@
     List<InterfaceType> mixins = <InterfaceType>[];
     ClassElement superclass = element.superclass;
     while (superclass.isUnnamedMixinApplication) {
       MixinApplicationElement mixinElement = superclass;
       mixins.add(element.thisType.asInstanceOf(mixinElement.mixin));
       superclass = mixinElement.superclass;
     }
     mixins = mixins.reversed.toList();
     InterfaceType supertype = element.thisType.asInstanceOf(superclass);
 
-
     encoder.setType(Key.SUPERTYPE, supertype);
     encoder.setTypes(Key.MIXINS, mixins);
     encoder.setTypes(Key.INTERFACES, element.interfaces.toList());
+    FunctionType callType = element.declaration.callType;
+    if (callType != null) {
+      encoder.setType(Key.CALL_TYPE, element.callType);
+    }
 
     if (element.isMixinApplication) {
       MixinApplicationElement mixinElement = element;
       encoder.setType(Key.MIXIN, mixinElement.mixinType);
     }
   }
 }
 
 class ConstructorSerializer implements ElementSerializer {
   const ConstructorSerializer();
@@ skipping 332 matching lines @@
         return new PrefixElementZ(decoder);
       case SerializedElementKind.EXTERNAL_LIBRARY:
       case SerializedElementKind.EXTERNAL_LIBRARY_MEMBER:
       case SerializedElementKind.EXTERNAL_STATIC_MEMBER:
       case SerializedElementKind.EXTERNAL_CONSTRUCTOR:
         break;
     }
     throw new UnsupportedError("Unexpected element kind '${elementKind}.");
   }
 }