Split long-running serialization tests to avoid timeouts

tests/compiler/dart2js/serialization/compilation_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_compilation_test;
-
-import 'dart:async';
-import 'package:async_helper/async_helper.dart';
-import 'package:compiler/src/compiler.dart';
-import 'package:compiler/src/filenames.dart';
-import '../memory_compiler.dart';
-import 'helper.dart';
-import 'test_data.dart';
-import '../output_collector.dart';
-
-main(List<String> args) {
-  asyncTest(() async {
-    Arguments arguments = new Arguments.from(args);
-    SerializedData serializedData =
-        await serializeDartCore(arguments: arguments);
-    if (arguments.filename != null) {
-      Uri entryPoint = Uri.base.resolve(nativeToUriPath(arguments.filename));
-      await compile(
-          entryPoint,
-          resolutionInputs: serializedData.toUris(),
-          sourceFiles: serializedData.toMemorySourceFiles());
-    } else {
-      Uri entryPoint = Uri.parse('memory:main.dart');
-      await arguments.forEachTest(serializedData, TESTS, compile);
-    }
-  });
-}
-
-Future compile(
-    Uri entryPoint,
-    {Map<String, String> sourceFiles: const <String, String>{},
-     List<Uri> resolutionInputs,
-     int index,
-     Test test,
-     bool verbose: false}) async {
-  String testDescription = test != null ? test.name : '${entryPoint}';
-  String id = index != null ? '$index: ' : '';
-  print('------------------------------------------------------------------');
-  print('compile ${id}${testDescription}');
-  print('------------------------------------------------------------------');
-  OutputCollector outputCollector = new OutputCollector();
-  await runCompiler(
-      entryPoint: entryPoint,
-      memorySourceFiles: sourceFiles,
-      resolutionInputs: resolutionInputs,
-      options: [],
-      outputProvider: outputCollector);
-  if (verbose) {
-    print(outputCollector.getOutput('', 'js'));
-  }
-}
-