Add a note.

ericsnowcurrently · ericsnowcurrently · commit fb7a025abc74 · 2023-05-01T20:47:36.000-06:00
diff --git a/Include/internal/pycore_typeobject.h b/Include/internal/pycore_typeobject.h
@@ -44,6 +44,8 @@ struct type_cache {
 
 typedef struct {
     PyTypeObject *type;
+    // XXX tp_dict, tp_bases, and tp_mro can probably be statically
+    // allocated, instead of dynamically and stored on the interpreter.
     PyObject *tp_dict;
     PyObject *tp_bases;
     PyObject *tp_mro;
