A third attempt to mark TestRdar12408181.py as skipped

Due to an unfortunate difference between the open source test harness
and our internal harness, applying two @skip... decorators to this test
works in the internal build but not in the open source build.

I've tried another approach to skipping this test and tested it out with
the open source harness. Hopefully this sticks!

rdar://36417163

llvm-svn: 322756

lldb/packages/Python/lldbsuite/test/lang/objc/rdar-12408181/TestRdar12408181.py

@@ -19,7 +19,6 @@ from lldbsuite.test import lldbutil
 # Note: Simply applying the @skipIf decorator here confuses the test harness
 # and gives a spurious failure.
 @skipUnlessDarwin
-@skipIfDarwin
 class Rdar12408181TestCase(TestBase):
 
     mydir = TestBase.compute_mydir(__file__)
@@ -35,6 +34,9 @@ class Rdar12408181TestCase(TestBase):
 
     def test_nswindow_count(self):
         """Test that we are able to find out how many children NSWindow has."""
+
+        self.skipTest("Skipping this test due to timeout flakiness")
+
         d = {'EXE': self.exe_name}
         self.build(dictionary=d)
         self.setTearDownCleanup(dictionary=d)