Added --failure-summary option to test.dart

tools/test.dart

 #!/usr/bin/env dart
 // Copyright (c) 2013, 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.
 
 /**
  * This file is the entrypoint of the dart test suite.  This suite is used
  * to test:
  *
  *     1. the dart vm
@@ skipping 60 matching lines @@
     new Path('sdk/lib/_internal/dartdoc'),
 ];
 
 void testConfigurations(List<Map> configurations) {
   var startTime = new DateTime.now();
   // Extract global options from first configuration.
   var firstConf = configurations[0];
   Map<String, RegExp> selectors = firstConf['selectors'];
   var maxProcesses = firstConf['tasks'];
   var progressIndicator = firstConf['progress'];
+  var failureSummary = firstConf['failure-summary'];
   BuildbotProgressIndicator.stepName = firstConf['step_name'];
   var verbose = firstConf['verbose'];
   var printTiming = firstConf['time'];
   var listTests = firstConf['list'];
   var useContentSecurityPolicy = firstConf['csp'];
 
   if (!firstConf['append_logs'])  {
     var file = new File(TestUtils.flakyFileName());
     if (file.existsSync()) {
       file.deleteSync();
@@ skipping 93 matching lines @@
     }
     if (progressIndicator == 'diff') {
       progressIndicator = 'compact';
       formatter = new ColorFormatter();
       printFailures = false;
       eventListener.add(new StatusFileUpdatePrinter());
     }
     eventListener.add(new SummaryPrinter());
     eventListener.add(new FlakyLogWriter());
     if (printFailures) {
-      eventListener.add(new TestFailurePrinter(formatter));
+      // The buildbot has it's own failure summary since it needs to wrap it
+      // into'@@@'-annotated sections.
+      var printFaiureSummary =
+          failureSummary && progressIndicator != 'buildbot';
+      eventListener.add(new TestFailurePrinter(printFaiureSummary, formatter));
     }
     eventListener.add(new ProgressIndicator.fromName(progressIndicator,
                                                      startTime,
                                                      formatter));
     if (printTiming) {
       eventListener.add(new TimingPrinter(startTime));
     }
     eventListener.add(new SkippedCompilationsPrinter());
     eventListener.add(new LeftOverTempDirPrinter());
   }
@@ skipping 20 matching lines @@
 }
 
 void main() {
   var optionsParser = new TestOptionsParser();
   var configurations = optionsParser.parse(new Options().arguments);
   if (configurations != null || configurations.length > 0) {
     testConfigurations(configurations);
   }
 }