skip and xfail two std::list-related libcxx tests that fail on OS X with TOT libcxx

Enrico has a bug on him to make this work across older libcxx list
and newer libcxx list simultaneously.  Needed in preparation of
getting the OS X public CI to run the TSAN tests.

tracked by:
rdar://25499635

llvm-svn: 265188

lldb/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-stl/libcxx/list/TestDataFormatterLibcxxList.py

@@ -27,6 +27,7 @@ class LibcxxListDataFormatterTestCase(TestBase):
 
     @skipIf(compiler="gcc")
     @skipIfWindows # libc++ not ported to Windows yet
+    @expectedFailureAll(oslist=["macosx"], bugnumber="rdar://25499635")
     def test_with_run_command(self):
         """Test that that file and class static variables display correctly."""
         self.build()

lldb/packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-stl/libcxx/list/loop/TestDataFormatterLibcxxListLoop.py

@@ -20,6 +20,7 @@ class LibcxxListDataFormatterTestCase(TestBase):
     @skipIf(compiler="gcc")
     @skipIfWindows # libc++ not ported to Windows yet
     @add_test_categories(["pyapi"])
+    @skipIfDarwin  # rdar://25499635
     def test_with_run_command(self):
         self.build()
         exe = os.path.join(os.getcwd(), "a.out")