Support multiple resolution inputs from command line.

tests/compiler/dart2js/serialization/impact_test.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_impact_test;
 
 import 'dart:async';
 import 'package:async_helper/async_helper.dart';
 import 'package:compiler/src/commandline_options.dart';
 import 'package:compiler/src/compiler.dart';
 import 'package:compiler/src/filenames.dart';
 import '../memory_compiler.dart';
 import 'helper.dart';
 import 'test_helper.dart';
 
 main(List<String> args) {
   Arguments arguments = new Arguments.from(args);
   asyncTest(() async {
-    String serializedData = await serializeDartCore(arguments: arguments);
+    SerializedData serializedData =
+        await serializeDartCore(arguments: arguments);
     if (arguments.filename != null) {
       Uri entryPoint = Uri.base.resolve(nativeToUriPath(arguments.filename));
       await check(serializedData, entryPoint);
     } else {
       Uri entryPoint = Uri.parse('memory:main.dart');
       await check(serializedData, entryPoint,
                   sourceFiles:  {'main.dart': 'main() {}'},
                   verbose: arguments.verbose);
     }
   });
 }
 
 Future check(
-  String serializedData,
+  SerializedData serializedData,
   Uri entryPoint,
   {Map<String, String> sourceFiles: const <String, String>{},
    bool verbose: false}) async {
 
   Compiler compilerNormal = compilerFor(
       memorySourceFiles: sourceFiles,
       options: [Flags.analyzeAll]);
   compilerNormal.resolution.retainCachesForTesting = true;
   await compilerNormal.run(entryPoint);
 
   Compiler compilerDeserialized = compilerFor(
-      memorySourceFiles: sourceFiles,
+      memorySourceFiles: serializedData.toMemorySourceFiles(sourceFiles),
+      resolutionInputs: serializedData.toUris(),
       options: [Flags.analyzeAll]);
   compilerDeserialized.resolution.retainCachesForTesting = true;
-  compilerDeserialized.serialization.deserializeFromText(serializedData);
   await compilerDeserialized.run(entryPoint);
 
   checkAllImpacts(compilerNormal, compilerDeserialized, verbose: verbose);
 }