Fix doctesthack for cdef functions

Cython/Compiler/AnalysedTreeTransforms.py

 from Cython.Compiler.Visitor import VisitorTransform, ScopeTrackingTransform, TreeVisitor
-from Nodes import StatListNode, SingleAssignmentNode
+from Nodes import StatListNode, SingleAssignmentNode, CFuncDefNode
 from ExprNodes import (DictNode, DictItemNode, NameNode, UnicodeNode, NoneNode,
                       ExprNode, AttributeNode, ModuleRefNode, DocstringRefNode)
 from PyrexTypes import py_object_type
@@ -53,6 +53,10 @@ class DoctestHackTransform(ScopeTrackingTransform):
     
     def visit_FuncDefNode(self, node):
         if node.doc:
+            if isinstance(node, CFuncDefNode) and not node.py_func:
+                # skip non-cpdef cdef functions
+                return node
+            
             pos = self.testspos
             if self.scope_type == 'module':
                 parent = ModuleRefNode(pos)
@@ -69,6 +73,8 @@ class DoctestHackTransform(ScopeTrackingTransform):
                                        is_py_attr=True,
                                        is_temp=True)
                 name = "%s.%s" % (clsname, node.entry.name)
+            else:
+                assert False
             getfunc = AttributeNode(pos, obj=parent,
                                     attribute=node.entry.name,
                                     type=py_object_type,

tests/run/doctesthack.pyx

-#cython: doctesthack=True
+# Directive defaults to True
 
 """
 Tests doctesthack compiler directive.
@@ -12,17 +12,25 @@ all_tests_run() is executed which does final validation.
 >>> items.sort()
 >>> for key, value in items:
 ...     print key, ';', value
-MyCdefClass.method (line 67) ; >>> add_log("cdef class method")
-MyClass.method (line 57) ; >>> add_log("class method")
-doc_without_test (line 39) ; Some docs
-mycpdeffunc (line 45) ; >>> add_log("cpdef")
-myfunc (line 36) ; >>> add_log("def")
+MyCdefClass.method (line 75) ; >>> add_log("cdef class method")
+MyClass.method (line 65) ; >>> add_log("class method")
+doc_without_test (line 47) ; Some docs
+mycpdeffunc (line 53) ; >>> add_log("cpdef")
+myfunc (line 44) ; >>> add_log("def")
 
 """
 
 log = []
 
 
+cdef cdeffunc():
+    """
+    Please don't include me!
+
+    >>> True
+    False
+    """
+
 def all_tests_run():
     log.sort()
     assert log == [u'cdef class method', u'class method', u'cpdef', u'def'], log