Serialize ResolutionImpact instead of WorldImpact.

pkg/compiler/lib/src/serialization/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;
 
 import '../elements/elements.dart';
 import '../constants/expressions.dart';
 import '../dart_types.dart';
+import '../util/enumset.dart';
 
 import 'constant_serialization.dart';
 import 'element_serialization.dart';
 import 'json_serializer.dart';
 import 'keys.dart';
 import 'type_serialization.dart';
 import 'values.dart';
 
 export 'task.dart' show LibraryDeserializer;
 
@@ skipping 76 matching lines @@
     _map[key] = value;
   }
 
 
   /// Maps the [key] entry to the enum [value] in the encoded object.
   void setEnum(K key, var value) {
     _checkKey(key);
     _map[key] = new EnumValue(value);
   }
 
+  /// Maps the [key] entry to the set of enum [values] in the encoded object.
+  void setEnums(K key, Iterable values) {
+    setEnumSet(key, new EnumSet.fromValues(values));
+  }
+
+  /// Maps the [key] entry to the enum [set] in the encoded object.
+  void setEnumSet(K key, EnumSet set) {
+    _checkKey(key);
+    _map[key] = new IntValue(set.value);
+  }
+
   /// Maps the [key] entry to the [element] in the encoded object.
   void setElement(K key, Element element) {
     _checkKey(key);
     _map[key] = _serializer.createElementValue(element);
   }
 
   /// Maps the [key] entry to the [elements] in the encoded object.
   ///
   /// If [elements] is empty, it is skipped.
   void setElements(K key, Iterable<Element> elements) {
@@ skipping 198 matching lines @@
     int value = _map[_getKeyValue(key)];
     if (value == null) {
       if (isOptional || defaultValue != null) {
         return defaultValue;
       }
       throw new StateError("enum value '$key' not found in $_map.");
     }
     return enumValues[value];
   }
 
+  /// Returns the set of enum values associated with [key] in the decoded
+  /// object.
+  ///
+  /// If no value is associated with [key], then if [isOptional] is `true`,
+  /// [defaultValue] is returned, otherwise an exception is thrown.
+  EnumSet getEnums(K key, {bool isOptional: false}) {
+    int value = _map[_getKeyValue(key)];
+    if (value == null) {
+      if (isOptional) {
+        return const EnumSet.fixed(0);
+      }
+      throw new StateError("enum values '$key' not found in $_map.");
+    }
+    return new EnumSet.fixed(value);
+  }
+
   /// Returns the [Element] value associated with [key] in the decoded object.
   ///
   /// If no value is associated with [key], then if [isOptional] is `true`,
   /// `null` is returned, otherwise an exception is thrown.
   Element getElement(K key, {bool isOptional: false}) {
     int id = _map[_getKeyValue(key)];
     if (id == null) {
       if (isOptional) {
         return null;
       }
@@ skipping 673 matching lines @@
 
   /// Returns the value used to store [key] as a property in the encoding an
   /// [ObjectValue].
   ///
   /// Different encodings have different restrictions and capabilities as how
   /// to store a [Key] value. For instance: A JSON encoding needs to convert
   /// [Key] to a [String] to store it in a JSON object; a Dart encoding can
   /// choose to store a [Key] as an [int] or as the [Key] itself.
   getObjectPropertyValue(Key key);
 }