Support per-library serialization.

pkg/compiler/lib/src/serialization/impact_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.impact;
 
 import '../dart_types.dart';
 import '../elements/elements.dart';
 import '../universe/call_structure.dart';
 import '../universe/selector.dart';
@@ skipping 29 matching lines @@
     object.setBool(Key.IS_SETTER,
         dynamicUse.selector.memberName.isSetter);
     if (dynamicUse.selector.memberName.library != null) {
       object.setElement(Key.LIBRARY,
         dynamicUse.selector.memberName.library);
     }
   }
 
   @override
   void visitStaticUse(StaticUse staticUse) {
+    if (staticUse.element.isGenerativeConstructor &&
+        staticUse.element.enclosingClass.isUnnamedMixinApplication) {
+      // TODO(johnniwinther): Handle static use of forwarding constructors.
+      return;
+    }
     ObjectEncoder object = staticUses.createObject();
     object.setEnum(Key.KIND, staticUse.kind);
     object.setElement(Key.ELEMENT, staticUse.element);
   }
 
   @override
   void visitTypeUse(TypeUse typeUse) {
     ObjectEncoder object = typeUses.createObject();
     object.setEnum(Key.KIND, typeUse.kind);
     object.setType(Key.TYPE, typeUse.type);
@@ skipping 35 matching lines @@
     ListDecoder typeUses = objectDecoder.getList(Key.TYPE_USES);
     for (int index = 0; index < typeUses.length; index++) {
       ObjectDecoder object = typeUses.getObject(index);
       TypeUseKind kind = object.getEnum(Key.KIND, TypeUseKind.values);
       DartType type = object.getType(Key.TYPE);
       worldImpact.registerTypeUse(new TypeUse.internal(type, kind));
     }
     return worldImpact;
   }
 }