Remove expectedFailureWindows decorator.

expectedFailureWindows is equivalent to using the general
expectedFailureAll decorator with oslist="windows".  Additionally,
by moving towards these common decorators we can solve the issue
of having to support decorators that can be called with or without
arguments.  Once all decorators are always called with arguments,
and this is enforced by design (because you can't specify the condition
you're decorating for without passing an argument) the implementation
of the decorators can become much simpler

Differential Revision: http://reviews.llvm.org/D16936

llvm-svn: 260134

lldb/packages/Python/lldbsuite/test/python_api/thread/TestThreadAPI.py

@@ -40,7 +40,7 @@ class ThreadAPITestCase(TestBase):
 
     @add_test_categories(['pyapi'])
     @expectedFailureFreeBSD # llvm.org/pr20476
-    @expectedFailureWindows # Test crashes
+    @expectedFailureAll(oslist=["windows"])
     def test_step_out_of_malloc_into_function_b(self):
         """Test Python SBThread.StepOut() API to step out of a malloc call where the call site is at function b()."""
         # We build a different executable than the default build() does.