Support multiple resolution inputs from command line.

pkg/compiler/lib/src/serialization/system.dart

 // Copyright (c) 2016, 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_system;
 
 import 'dart:async';
 import '../commandline_options.dart';
 import '../common.dart';
 import '../common/backend_api.dart';
@@ skipping 18 matching lines @@
 class DeserializerSystemImpl extends DeserializerSystem {
   final Compiler _compiler;
   final DeserializationContext deserializationContext;
   final List<LibraryElement> deserializedLibraries = <LibraryElement>[];
   final ResolutionImpactDeserializer _resolutionImpactDeserializer;
   final ResolvedAstDeserializerPlugin _resolvedAstDeserializer;
   final ImpactTransformer _impactTransformer;
 
   factory DeserializerSystemImpl(
       Compiler compiler, ImpactTransformer impactTransformer) {
-    DeserializationContext context = new DeserializationContext();
+    DeserializationContext context =
+        new DeserializationContext(compiler.reporter);
     DeserializerPlugin backendDeserializer =
         compiler.backend.serialization.deserializer;
     context.plugins.add(backendDeserializer);
     ResolutionImpactDeserializer resolutionImpactDeserializer =
         new ResolutionImpactDeserializer(backendDeserializer);
     context.plugins.add(resolutionImpactDeserializer);
     ResolvedAstDeserializerPlugin resolvedAstDeserializer =
         new ResolvedAstDeserializerPlugin(
             compiler.parsingContext, backendDeserializer);
     context.plugins.add(resolvedAstDeserializer);
@@ skipping 192 matching lines @@
   }
 
   @override
   void onElement(Element element, ObjectDecoder getDecoder(String tag)) {
     ObjectDecoder decoder = getDecoder(RESOLVED_AST_TAG);
     if (decoder != null) {
       _decoderMap[element] = decoder;
     }
   }
 }