cl-preloaded.el: Further fine-tuning

cl-preloaded.el: Further fine-tuning

* lisp/emacs-lisp/cl-preloaded.el (cl--direct-supertypes-of-type):
Fix some left over issues:
- Remove redundant `number-or-marker` from `marker`s parents.
- Add `function` to the types, since it was missing.
(cl--typeof-types): Add a warning for missing type info.

* admin/syncdoc-type-hierarchy.el (syncdoc-hierarchy): Fix parent of
`oclosure`.

* doc/lispref/type_hierarchy.txt:
* doc/lispref/type_hierarchy.jpg: Update.