* lisp/emacs-lisp/bindat.el (bindat-spec): New macro.

* lisp/emacs-lisp/bindat.el (bindat-spec): New macro.

It's basically an alias for `quote`, but it offers the advantage of
providing Edebug support and opens the possibility of compiling
the bindat spec to ELisp code.

* doc/lispref/processes.texi (Bindat Spec): Document `bindat-spec`.
(Bindat Functions): Tweak a few things to adjust to the state of the code.

* test/lisp/emacs-lisp/bindat-tests.el: Use it.

* test/lisp/emacs-lisp/edebug-tests.el (edebug-tests--read): New function.
(edebug-tests--&rest-behavior): New test.