Fix test for existence of member.
obj.x will raise an exception if 'x' is not a member of obj.
diff --git a/litsupport/test.py b/litsupport/test.py
index 91b435a..1de51c1 100644
--- a/litsupport/test.py
+++ b/litsupport/test.py
@@ -19,9 +19,11 @@
# add_result_category has been added recently to lit. Lit will crash if it encounters a result code that has not been registered.
# However, some users rely on the lit version provided by pypi that does not require or have add_result_category.
# See for more details: http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20200511/780899.html
-if lit.main.add_result_category:
+try:
lit.main.add_result_category(NOEXE, "Executable Missing")
lit.main.add_result_category(NOCHANGE, "Executable Unchanged")
+except AttributeError:
+ pass
class TestSuiteTest(lit.formats.ShTest):
