GitLab

(smie-warning-count): New var.
(smie-set-prec2tab): Use it.
(smie-bnf->prec2): Improve warnings.  Add docstring.
(smie-bnf--closer-alist): Rename from smie-bnf-closer-alist.
(smie-bnf--set-class): New function.
(smie-bnf--classify): Rename from smie-bnf-classify.  Rewrite to fix
corner case.