Revert stray edit to test.dart.

tools/testing/dart/test_runner.dart

Index: tools/testing/dart/test_runner.dart
diff --git a/tools/testing/dart/test_runner.dart b/tools/testing/dart/test_runner.dart
index dcbcdf119370f882507b2947179757a05af28050..cddf5aeec010c6c71ec97b2434a2fae2756625a4 100644
--- a/tools/testing/dart/test_runner.dart
+++ b/tools/testing/dart/test_runner.dart
@@ -1014,7 +1014,7 @@ class ProcessQueue {
     filePath = filePath.substring(0, index) + '${pathSep}testing${pathSep}';
     var dir = new Directory(filePath);
     dir.onFile = (String file) {
-      if (const RegExp("selenium-server-standalone-.*\.jar").hasMatch(file)
+      if (const RegExp(@"selenium-server-standalone-.*\.jar").hasMatch(file)

[Emily Fortuna, 2012/03/13 00:30:32]

But if we add the @ character, we'd be using a raw string that doesn't have any
escape characters, but the \ in this line is used as an escape character. See
http://www.dartlang.org/docs/spec/dartLangSpec.pdf page 40.

           && _seleniumServer == null) {
         _seleniumServer = new Process.start('java', ['-jar', file]);
         // Heads up: there seems to an obscure data race of some form in