Blacklist __nonzero__ from autotestdict

Cython/Compiler/AnalysedTreeTransforms.py

@@ -10,7 +10,7 @@ import Naming
 class AutoTestDictTransform(ScopeTrackingTransform):
     # Handles autotestdict directive
 
-    blacklist = ['__cinit__', '__dealloc__', '__richcmp__']
+    blacklist = ['__cinit__', '__dealloc__', '__richcmp__', '__nonzero__']
 
     def visit_ModuleNode(self, node):
         self.scope_type = 'module'

tests/run/autotestdict.pyx

@@ -102,5 +102,12 @@ cdef class MyCdefClass:
         False
         """
 
+    def __nonzero__(self):
+        """
+        Should not be included, as it can't be looked up with getattr in Py 3.1
+
+        >>> True
+        False
+        """