unittest step2: bye bye to multiple entrypoints for unittest

client/tests/client/dom/NativeGCTest.dart

Index: client/tests/client/dom/NativeGCTest.dart
diff --git a/client/tests/client/dom/NativeGCTest.dart b/client/tests/client/dom/NativeGCTest.dart
index 5637eff4603c57194e61f96856971648aa30a416..2ed7800d4007116ed3a1ae811fcf1656ce4b104e 100644
--- a/client/tests/client/dom/NativeGCTest.dart
+++ b/client/tests/client/dom/NativeGCTest.dart
@@ -1,8 +1,10 @@
 #library('NativeGCTest');
-#import('../../../../lib/unittest/unittest_dom.dart');
+#import('../../../../lib/unittest/unittest.dart');
+#import('../../../../lib/unittest/dom_config.dart');
 #import('dart:dom');
 
 main() {
+  useDomConfiguration();
 
   test('EventListener', () {
       final int N = 1000000;