Unbreak waterfall after r12968.

R=jkummerow@chromium.org
TEST=test262

Review URL: https://codereview.chromium.org/11416008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12970 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/test262/testcfg.py

@@ -179,6 +179,8 @@ class Test262TestConfiguration(test.TestConfiguration):
     for root, dirs, files in os.walk(testroot):
       for dotted in [x for x in dirs if x.startswith('.')]:
         dirs.remove(dotted)
+      for skipped in [x for x in dirs if x in TEST_262_SKIP]:
+        dirs.remove(skipped)
       dirs.sort()
       root_path = root[len(self.root):].split(os.path.sep)
       root_path = current_path + [x for x in root_path if x]