[python] Mark get_test_binary as not being a test

get_test_binary is a helper method, not a test, make sure nosetests
doesn't pick it up as a test.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153173 91177308-0d34-0410-b5e6-96231b3b80d8

bindings/python/llvm/tests/base.py

@@ -27,3 +27,4 @@ class TestBase(unittest.TestCase):
                     return path
 
         raise Exception('No suitable test binaries available!')
+    get_test_binary.__test__ = False