Catch TypeError on inspect calls (fixes #188)

Author: dnozay

xmlrunner/result.py

@@ -271,7 +271,8 @@ def startTest(self, test):
                 # Handle partial and partialmethod objects.
                 test_method = getattr(test_method, 'func', test_method)
                 _, self.lineno = inspect.getsourcelines(test_method)
-        finally:
+        except TypeError:
+            # issue #188, some frameworks can make test method opaque.
             pass
 
         if self.showAll: