Create generated tests inside the build directory

tools/test.dart

Index: tools/test.dart
diff --git a/tools/test.dart b/tools/test.dart
index 12cff100c5a64c6acbc267704e242cb41a0f82d5..849e525e42a363d8eb5ef608ee7696e46629c073 100755
--- a/tools/test.dart
+++ b/tools/test.dart
@@ -126,6 +126,10 @@ main() {
   }
 
   var testSuites = new List<TestSuite>();
+  // FIXME(kustermann,ricow): This is broken and should be fixed ASAP.
+  // Issue: 8366
+  TestingServerRunner.setBuildDir(firstConf);
+  TestingServerRunner.setPackageRootDir(firstConf);
   var maxBrowserProcesses = maxProcesses;
   for (var conf in configurations) {
     // There should not be more than one InternetExplorerDriver instance
@@ -134,7 +138,6 @@ main() {
     if (conf['runtime'].startsWith('ie')) {
       maxBrowserProcesses = 1;
     }
-    TestingServerRunner.setPackageRootDir(conf);
     for (String key in selectors.keys) {
       if (key == 'co19') {
         testSuites.add(new Co19TestSuite(conf));