fix #resource tag in browser tests

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 400 matching lines @@
   void enqueueBrowserTest(String filename,
                           String testName,
                           Map optionsFromFile,
                           Set<String> expectations,
                           bool isNegative) {
     if (optionsFromFile['isMultitest']) return;
     bool isWebTest = optionsFromFile['containsDomImport'];
     bool isLibraryDefinition = optionsFromFile['isLibraryDefinition'];
     if (!isLibraryDefinition && optionsFromFile['containsSourceOrImport']) {
       print('Warning for $filename: Browser tests require #library ' +
-            'in any file that uses #import or #source');
+            'in any file that uses #import, #source, or #resource');
     }
 
     final String component = configuration['component'];
     final String testPath =
         new File(filename).fullPathSync().replaceAll('\\', '/');
 
     for (var vmOptions in optionsFromFile['vmOptions']) {
       // Create a unique temporary directory for each set of vmOptions.
       // TODO(dart:429): Replace separate replaceAlls with a RegExp when
       // replaceAll(RegExp, String) is implemented.
@@ skipping 304 matching lines @@
     RegExp dartOptionsRegExp = const RegExp(@"// DartOptions=(.*)");
     RegExp multiTestRegExp = const RegExp(@"/// [0-9][0-9]:(.*)");
     RegExp leadingHashRegExp = const RegExp(@"^#", multiLine: true);
     RegExp isolateStubsRegExp = const RegExp(@"// IsolateStubs=(.*)");
     RegExp domImportRegExp =
         const RegExp(@"^#import.*(dart:(dom|html)|html\.dart).*\)",
                      multiLine: true);
     RegExp libraryDefinitionRegExp =
         const RegExp(@"^#library\(", multiLine: true);
     RegExp sourceOrImportRegExp =
-        const RegExp(@"^#(source|import)\(", multiLine: true);
+        const RegExp(@"^#(source|import|resource)\(", multiLine: true);
 
     // Read the entire file into a byte buffer and transform it to a
     // String. This will treat the file as ascii but the only parts
     // we are interested in will be ascii in any case.
     RandomAccessFile file = new File(filename).openSync();
     List chars = new List(file.lengthSync());
     var offset = 0;
     while (offset != chars.length) {
       offset += file.readListSync(chars, offset, chars.length - offset);
     }
@@ skipping 368 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);
    }
 }