SMIE: change indent rules format, improve smie-setup.
* lisp/emacs-lisp/smie.el (smie-precs-precedence-table)
(smie-merge-prec2s, smie-bnf-precedence-table, smie-prec2-levels):
Mark them pure so the tables gets built at compile time.
(smie-bnf-precedence-table): Store the closer-alist in the table.
(smie-prec2-levels): Preserve the closer-alist.
(smie-blink-matching-open): Be more forgiving in case of indentation.
(smie-hanging-p): Rename from smie-indent--hanging-p.
(smie-bolp): Rename from smie-indent--bolp.
(smie--parent, smie--after): New dynamic vars.
(smie-parent-p, smie-next-p, smie-prev-p): New funs.
(smie-indent-rules): Remove.
(smie-indent--offset-rule): Remove fun.
(smie-rules-function): New var.
(smie-indent--rule): New fun.
(smie-indent--offset, smie-indent-keyword, smie-indent-after-keyword)
(smie-indent-exps): Use it.
(smie-setup): Setup paren blinking; add keyword args for token
functions; extract closer-alist from op-levels.
(smie-indent-debug-log): Remove var.
(smie-indent-debug): Remove fun.
* lisp/progmodes/prolog.el (prolog-smie-indent-rules): Remove.
(prolog-smie-rules): New fun to replace it.
(prolog-mode-variables): Simplify.
* lisp/progmodes/octave-mod.el (octave-smie-closer-alist): Remove, now that
it's setup automatically.
(octave-smie-indent-rules): Remove.
(octave-smie-rules): New fun to replace it.
(octave-mode): Simplify.