Split out long-running serialization test and add timings to output

tests/compiler/dart2js/serialization/analysis_test_helper.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/compiler.dart';
 import 'package:compiler/src/filenames.dart';
 import '../memory_compiler.dart';
 import 'helper.dart';
 import 'test_data.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 analyze(entryPoint,
           resolutionInputs: serializedData.toUris(),
           sourceFiles: serializedData.toMemorySourceFiles());
     } else {
       await arguments.forEachTest(serializedData, TESTS, analyze);
     }
+    printMeasurementResults();
   });
 }
 
 Future analyze(
     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('analyze ${id}${testDescription}');
-  print('------------------------------------------------------------------');
-  DiagnosticCollector diagnosticCollector = new DiagnosticCollector();
-  await runCompiler(
-      entryPoint: entryPoint,
-      resolutionInputs: resolutionInputs,
-      memorySourceFiles: sourceFiles,
-      options: [Flags.analyzeOnly],
-      diagnosticHandler: diagnosticCollector);
-  if (test != null) {
-    Expect.equals(test.expectedErrorCount, diagnosticCollector.errors.length,
-        "Unexpected error count.");
-    Expect.equals(
-        test.expectedWarningCount,
-        diagnosticCollector.warnings.length,
-        "Unexpected warning count.");
-    Expect.equals(test.expectedHintCount, diagnosticCollector.hints.length,
-        "Unexpected hint count.");
-    Expect.equals(test.expectedInfoCount, diagnosticCollector.infos.length,
-        "Unexpected info count.");
-  }
+  String title = '${id}${testDescription}';
+  await measure(title, 'analyze', () async {
+    DiagnosticCollector diagnosticCollector = new DiagnosticCollector();
+    await runCompiler(
+        entryPoint: entryPoint,
+        resolutionInputs: resolutionInputs,
+        memorySourceFiles: sourceFiles,
+        options: [Flags.analyzeOnly],
+        diagnosticHandler: diagnosticCollector);
+    if (test != null) {
+      Expect.equals(test.expectedErrorCount, diagnosticCollector.errors.length,
+          "Unexpected error count.");
+      Expect.equals(
+          test.expectedWarningCount,
+          diagnosticCollector.warnings.length,
+          "Unexpected warning count.");
+      Expect.equals(test.expectedHintCount, diagnosticCollector.hints.length,
+          "Unexpected hint count.");
+      Expect.equals(test.expectedInfoCount, diagnosticCollector.infos.length,
+          "Unexpected info count.");
+    }
+  });
 }