GitLab

* lisp/emacs-lisp/smie.el (smie-bnf-classify): New function.
(smie-bnf-precedence-table): Use it to remember the closers/openers.
(smie-merge-prec2s): Handle those new entries.
(smie-prec2-levels): Only set precedence to nil for actual
openers/closers.
* lisp/progmodes/octave-mod.el (octave-smie-op-levels): Remove dummy entry
that is now unnecessary.