Shared commandline flags.

tests/compiler/dart2js/serialization_analysis_test.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_analysis_test;
 
 import 'dart:async';
 import 'package:async_helper/async_helper.dart';
 import 'package:expect/expect.dart';
+import 'package:compiler/src/commandline_options.dart';
 import 'package:compiler/src/elements/elements.dart';
 import 'package:compiler/src/compiler.dart';
 import 'package:compiler/src/enqueue.dart';
 import 'package:compiler/src/filenames.dart';
 import 'package:compiler/src/serialization/serialization.dart';
 import 'package:compiler/src/serialization/json_serializer.dart';
 import 'package:compiler/src/serialization/task.dart';
 import 'memory_compiler.dart';
 
 const List<Test> TESTS = const <Test>[
@@ skipping 153 matching lines @@
     this.expectedInfoCount: 0});
 }
 
 Future analyze(String serializedData, Uri entryPoint, Test test) async {
   Deserializer deserializer = new Deserializer.fromText(
       serializedData, const JsonSerializationDecoder());
   DiagnosticCollector diagnosticCollector = new DiagnosticCollector();
   await runCompiler(
       entryPoint: entryPoint,
       memorySourceFiles: test != null ? test.sourceFiles : const {},
-      options: ['--analyze-only', '--output-type=dart'],
+      options: [Flags.analyzeOnly, '--output-type=dart'],
       diagnosticHandler: diagnosticCollector,
       beforeRun: (Compiler compiler) {
         compiler.serialization.deserializer =
             new _DeserializerSystem(deserializer);
       });
   if (test != null) {
     Expect.equals(test.expectedErrorCount, diagnosticCollector.errors.length,
         "Unexpected error count.");
     Expect.equals(
         test.expectedWarningCount,
@@ skipping 38 matching lines @@
   @override
   WorldImpact computeWorldImpact(Element element) {
     return const WorldImpact();
   }
 
   @override
   bool isDeserialized(Element element) {
     return deserializedLibraries.contains(element.library);
   }
 }