Added the ability to filter which tests are run by name, using a --filter

tools/testing/dart/test_suite.dart

 // Copyright (c) 2012, 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.
 
 /**
  * Classes and methods for enumerating and preparing tests.
  *
  * This library includes:
  *
  * - Creating tests by listing all the Dart files in certain directories,
@@ skipping 428 matching lines @@
                           info));
     }
   }
 
   List<Command> makeCommands(TestInformation info, var args) {
     if (configuration['compiler'] == 'dart2js') {
       args = new List.from(args);
       String testPath =
           new File(info.filename).fullPathSync().replaceAll('\\', '/');
       String tempDir = createOutputDirectory(testPath, '');
+      if (configuration['filter'] != '') {
+        args.add('--filter="${configuration["filter"]}"');
+      }
       args.add('--out=$tempDir/out.js');
       List<Command> commands = <Command>[new Command(shellPath(), args)];
       if (configuration['runtime'] == 'd8') {
         var d8 = TestUtils.d8FileName(configuration);
         commands.add(new Command(d8, ['$tempDir/out.js']));
       }
       return commands;
     } else {
+      if (configuration['filter'] != '') {
+        args.add('--filter="${configuration["filter"]}"');
+      }
       return <Command>[new Command(shellPath(), args)];
     }
   }
 
   Function makeTestCaseCreator(Map optionsFromFile) {
     return (String filename,
             bool isNegative,
             [bool isNegativeIfChecked = false,
              bool hasFatalTypeErrors = false,
              bool hasRuntimeErrors = false,
@@ skipping 89 matching lines @@
           dartLibraryFilename = 'test_as_library.dart';
           File file = new File('$tempDir/$dartLibraryFilename');
           RandomAccessFile dartLibrary = file.openSync(FileMode.WRITE);
           dartLibrary.writeStringSync(WrapDartTestInLibrary(testPath));
           dartLibrary.closeSync();
         }
 
         File file = new File(dartWrapperFilename);
         RandomAccessFile dartWrapper = file.openSync(FileMode.WRITE);
         dartWrapper.writeStringSync(
-            DartTestWrapper(dartDir, dartLibraryFilename));
+            DartTestWrapper(dartDir, dartLibraryFilename,
+                configuration['filter']));
         dartWrapper.closeSync();
       } else {
         dartWrapperFilename = testPath;
         // TODO(whesse): Once test.py is retired, adjust the relative path in
         // the client/samples/dartcombat test to its css file, remove the
         // "../../" from this path, and move this out of the isWebTest guard.
         // Also remove getHtmlName, and just use test.html.
         // TODO(efortuna): this shortening of htmlFilename is a band-aid until
         // the above TODO gets fixed. Windows cannot have paths that are longer
         // than 260 characters, and without this hack, we were running past the
@@ skipping 769 matching lines @@
  * $noCrash tests are expected to be flaky but not crash
  * $pass tests are expected to pass
  * $failOk tests are expected to fail that we won't fix
  * $fail tests are expected to fail that we should fix
  * $crash tests are expected to crash that we should fix
  * $timeout tests are allowed to timeout
 """;
     print(report);
    }
 }