GitLab

* lisp/emacs-lisp/edebug.el (edebug-read-special): New name
for edebug-read-function. Handle the read syntax for circular
objects.
(edebug-read-objects): New variable.
(edebug-read-and-maybe-wrap-form1): Reset edebug-read-objects.

* src/lread.c (Fsubstitute_object_in_subtree): Make
substitute_object_in_subtree into a Lisp primitive.