unittest step2: bye bye to multiple entrypoints for unittest

tests/isolate/src/APIv2_spawnUriBrowserNegativeTest.dart

Index: tests/isolate/src/APIv2_spawnUriBrowserNegativeTest.dart
diff --git a/tests/isolate/src/APIv2_spawnUriBrowserNegativeTest.dart b/tests/isolate/src/APIv2_spawnUriBrowserNegativeTest.dart
index e52a3ed7a491245cf9aeae7d7ae7525a59f83934..8966c0aac70592179549db373acc453170abf457 100644
--- a/tests/isolate/src/APIv2_spawnUriBrowserNegativeTest.dart
+++ b/tests/isolate/src/APIv2_spawnUriBrowserNegativeTest.dart
@@ -7,11 +7,13 @@
 // other isolate's code.
 // OtherScripts=APIv2_spawnUriChildIsolate.dart
 #library('spawn_tests');
-#import('../../../lib/unittest/unittest_dom.dart');
+#import('../../../lib/unittest/unittest.dart');
+#import('../../../lib/unittest/dom_config.dart');
 #import('dart:dom'); // import added so test.dart can treat this as a webtest.
 #import('dart:isolate');
 
 main() {
+  useDomConfiguration();
   asyncTest('isolate fromUri - negative test', 1, () {
     ReceivePort port = new ReceivePort();
     port.receive((msg, _) {