XFAIL TestEvents on Linux bacuse it is flaky

llvm-svn: 237888

lldb/test/python_api/event/TestEvents.py

@@ -54,6 +54,7 @@ class EventAPITestCase(TestBase):
     @skipIfFreeBSD # llvm.org/pr21325
     @python_api_test
     @dwarf_test
+    @expectedFailureLinux
     def test_add_listener_to_broadcaster_with_dwarf(self):
         """Exercise some SBBroadcaster APIs."""
         self.buildDwarf()