That should be special_form

Author: sterliakov

mypy/messages.py

@@ -2008,6 +2008,7 @@ def untyped_decorated_function(self, typ: Type, context: Context) -> None:
         if isinstance(typ, AnyType):
             self.fail("Function is untyped after decorator transformation", context)
         else:
+            breakpoint()
             self.fail(
                 f'Type of decorated function contains type "Any" ({format_type(typ, self.options)})',
                 context,

mypy/types.py

@@ -2420,9 +2420,7 @@ def __init__(
             if not isinstance(fallback.args[0], ProperType) or not isinstance(
                 fallback.args[0], AnyType
             ):
-                fallback = fallback.copy_modified(
-                    args=[AnyType(TypeOfAny.implementation_artifact)]
-                )
+                fallback = fallback.copy_modified(args=[AnyType(TypeOfAny.special_form)])
         self.partial_fallback = fallback
         self.items = items
         self.implicit = implicit