Remove proxy call from TestFunction

This will make testimony play nice when running inside a multiprocessing
environment. That proxy logic lands to a max recursion depth error when
multiprocessing module is trying to pass a TestFunction instance to a
process.

testimony/__init__.py

@@ -85,9 +85,10 @@ class TestFunction(object):
 
     def __init__(self, function_def, parent_class=None, testmodule=None):
         #: A ``ast.FunctionDef`` instance used to extract information
+        self.docstring = ast.get_docstring(function_def)
         self.function_def = function_def
+        self.name = function_def.name
         self.parent_class = parent_class
-        self.docstring = ast.get_docstring(function_def)
         self.testmodule = testmodule
         self.assertion = None
         self.bugs = None
@@ -177,14 +178,6 @@ def to_dict(self):
             'test': self.test,
         }
 
-    def __getattr__(self, name):
-        """Proxy missing attributes to the ``ast.FunctionDef`` instance."""
-        attr = getattr(self.function_def, name, self._undefined)
-        if attr is self._undefined:
-            return super(TestFunction, self).__getattr__(name)
-        else:
-            return attr
-
     def __str__(self):
         output = []
         if self.test is not None: