diff --git a/jedi/evaluate/__init__.py b/jedi/evaluate/__init__.py
index 224698b4..aeff3555 100644
--- a/jedi/evaluate/__init__.py
+++ b/jedi/evaluate/__init__.py
@@ -172,7 +172,7 @@ class Evaluator(object):
     @evaluator_function_cache()
     def typing_module(self):
         typing_module, = self.import_module((u'typing',))
-        return typing_module.stub_context or typing_module
+        return typing_module
 
     def reset_recursion_limitations(self):
         self.recursion_detector = recursion.RecursionDetector()
diff --git a/jedi/evaluate/compiled/context.py b/jedi/evaluate/compiled/context.py
index 6d0b622b..2ec6db79 100644
--- a/jedi/evaluate/compiled/context.py
+++ b/jedi/evaluate/compiled/context.py
@@ -85,7 +85,10 @@ class CompiledObject(Context):
     @property
     def string_names(self):
         # For modules
-        return tuple(self.py__name__().split('.'))
+        name = self.py__name__()
+        if name is None:
+            return []
+        return tuple(name.split('.'))
 
     def get_qualified_names(self):
         return self.string_names
diff --git a/jedi/evaluate/context/function.py b/jedi/evaluate/context/function.py
index a956fde3..9e36b389 100644
--- a/jedi/evaluate/context/function.py
+++ b/jedi/evaluate/context/function.py
@@ -348,7 +348,7 @@ class FunctionExecutionContext(TreeContext):
                 generics = (yield_contexts.py__class__(), NO_CONTEXTS)
                 return ContextSet(
                     # In Python 3.6 AsyncGenerator is still a class.
-                    AnnotatedSubClass(c.stub_context or c, generics)
+                    AnnotatedSubClass(c, generics)
                     for c in async_generator_classes
                 ).execute_annotation()
             else:
@@ -359,10 +359,7 @@ class FunctionExecutionContext(TreeContext):
                 # Only the first generic is relevant.
                 generics = (return_contexts.py__class__(), NO_CONTEXTS, NO_CONTEXTS)
                 return ContextSet(
-                    AnnotatedSubClass(
-                        c if c.stub_context is None else c.stub_context,
-                        generics
-                    ) for c in async_classes
+                    AnnotatedSubClass(c, generics) for c in async_classes
                 ).execute_annotation()
         else:
             if is_generator:
diff --git a/jedi/evaluate/gradual/typing.py b/jedi/evaluate/gradual/typing.py
index 7939678f..6360f493 100644
--- a/jedi/evaluate/gradual/typing.py
+++ b/jedi/evaluate/gradual/typing.py
@@ -513,8 +513,8 @@ class AbstractAnnotatedClass(ClassMixin, ContextWrapper):
         filter_ = super(AbstractAnnotatedClass, self)._create_class_filter(
             cls, origin_scope, is_instance
         )
-        if cls.stub_context is None:
-            return filter_
+        return filter_
+        # XXX
         return cls.stub_context.get_stub_only_filter(
             # Take the first filter, which is here to filter module contents
             # and wrap it.