Add SkipSlow marker

tools/testing/dart/summary_report.dart

 // Copyright (c) 2014, 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 summary_report;
 
 import "status_file_parser.dart";
 import "test_runner.dart";
 
 final summaryReport = new SummaryReport();
@@ skipping 18 matching lines @@
   int get bogus => _nonStandardTestCases.length;
 
   final List<TestCase> _nonStandardTestCases = <TestCase>[];
 
   void add(TestCase testCase) {
     var expectations = testCase.expectedOutcomes;
 
     bool containsFail = expectations
         .any((expectation) => expectation.canBeOutcomeOf(Expectation.FAIL));
     bool containsPass = expectations.contains(Expectation.PASS);
-    bool containsSkip = expectations.contains(Expectation.SKIP);
+    bool containsSkip = expectations
+      .any((expectation) => expectation.canBeOutcomeOf(Expectation.SKIP));
     bool containsSkipByDesign =
         expectations.contains(Expectation.SKIP_BY_DESIGN);
     bool containsCrash = expectations.contains(Expectation.CRASH);
     bool containsOK = expectations.contains(Expectation.OK);
     bool containsSlow = expectations.contains(Expectation.SLOW);
     bool containsTimeout = expectations.contains(Expectation.TIMEOUT);
 
     ++_total;
     if (containsSkip) {
       ++_skipped;
@@ skipping 74 matching lines @@
  * $_timeout tests are allowed to timeout
  * $_compileErrorSkip tests are skipped on browsers due to compile-time error
  * $bogus could not be categorized or are in multiple categories
 """;
 
   void printReport() {
     if (_total == 0) return;
     print(report);
   }
 }