`noindent` is more precise than what we did since it gives more
info to the caller: `indent-for-tab-command` can treat it
differently (e.g. fall back to `indent-relative`) than `indent-region`.

* lisp/nxml/nxml-mode.el (nxml-compute-indent-in-token): Use `noindent`
in CDATA.
(nxml-compute-indent-in-delimited-token): Remove CDATA case, not used
any nmore.

* lisp/nxml/nxml-mode.el (nxml-merge-indent-context-type):
Handle 'cdata-section' type to prevent it from returning 'mixed'.
* lisp/nxml/nxml-mode.el (nxml-compute-indent-in-delimited-token):
Preserve existing indentation for CDATA section content.
(bug#79817)

Copyright-paperwork-exempt: yes

* lisp/progmodes/hideshow.el: Set default values of buffer-local variables.
(hs-inside-comment-p): Restore.
(hs--set-variable): Rename from 'hs--get-mode-value'.
(hs-grok-mode-type): Rework.
* lisp/nxml/nxml-mode.el:
* lisp/progmodes/f90.el:
* lisp/progmodes/fortran.el:
* lisp/progmodes/icon.el:
* lisp/progmodes/lua-mode.el:
* lisp/progmodes/python.el:
* lisp/progmodes/verilog-mode.el:
* lisp/progmodes/vhdl-mode.el:
* lisp/textmodes/mhtml-mode.el:
* lisp/textmodes/sgml-mode.el:
* lisp/treesit.el (treesit-major-mode-setup): Rename
'hs-forward-sexp-func' to 'hs-forward-sexp-function',
'hs-adjust-block-beginning' to 'hs-adjust-block-beginning-function',
'hs-find-block-beginning-func' to 'hs-find-block-beginning-function',
'hs-find-next-block-func' to 'hs-find-next-block-function',
'hs-looking-at-block-start-p-func' to 'hs-looking-at-block-start-predicate',
'hs-inside-comment-p-func' to 'hs-inside-comment-predicate'.

* doc/emacs/programs.texi (Hideshow):
* etc/NEWS: Fix doc.
* lisp/progmodes/hideshow.el: Update Commentary Header.
(hs-modes-alist): Remove.
(hs--get-mode-value, hs-grok-mode-type): Rework.
* lisp/treesit.el (treesit-major-mode-setup):
* lisp/emacs-lisp/lisp-mode.el:
* lisp/nxml/nxml-mode.el:
* lisp/progmodes/cc-mode.el:
* lisp/progmodes/f90.el:
* lisp/progmodes/fortran.el:
* lisp/progmodes/hideshow.el:
* lisp/progmodes/icon.el:
* lisp/progmodes/js.el:
* lisp/progmodes/lua-mode.el:
* lisp/progmodes/python.el:
* lisp/progmodes/verilog-mode.el:
* lisp/progmodes/vhdl-mode.el:
* lisp/textmodes/bibtex.el:
* lisp/textmodes/mhtml-mode.el:
* lisp/textmodes/sgml-mode.el:
* lisp/treesit.el: Fix and rework previous changes.

0d493864cee Fix indentation of XML comments
1a2c29b5317 Improve Tramp's make-process handling for Solaris
a7dffc2ea38 Document 'time-stamp-time-zone' in Emacs Manual
0b4eb525b69 Make treesit--simple-indent-eval more permissive (bug#78065)
ed7b55f6bf1 Adapt Tramp tests
b172a1478c1 ; * doc/lispref/tips.texi (Library Headers): Fix wording ...
81629b2b2ba ; * lisp/gnus/mail-source.el (mail-sources): Fix a typo (...

* lisp/nxml/nxml-mode.el (nxml-compute-indent-in-delimited-token):
Fix indentation in XML comments with empty lines.  Patch by John
Ciolfi <ciolfi@mathworks.com>.  (Bug#73206)

* lisp/nxml/nxml-mode.el (nxml-extend-region):
Protect against error "Invalid search bound (wrong side of point)".

* lisp/vc/diff-mode.el (diff-syntax-fontify-hunk):
Use 'with-demoted-errors' instead of 'ignore-errors'.

As presently under discussion in bug#77823, the intended new
functionality is not really about comments at all.
Remove it for now to allow us to redesign from a clean slate,
and to deal with the regression reported in bug#77823.

This reverts the following three changesets:

Author:     Elías Gabriel Pérez <eg642616@gmail.com>
AuthorDate: Mon Mar 17 12:56:52 2025 -0600

  New minor mode: `electric-block-comment-mode'

Author:     Elías Gabriel Pérez <eg642616@gmail.com>
AuthorDate: Mon Mar 31 17:58:16 2025 -0600

  Add block-comment-start and block-comment-end to supported modes

Author:     Elías Gabriel Pérez <eg642616@gmail.com>
AuthorDate: Sun Apr 13 12:26:08 2025 -0600

  Add block-comment variables to cc-mode

* lisp/emacs-lisp/lisp-mode.el (lisp-mode-variables):
Add block-comment-start and block-comment-end from here...
* lisp/newcomment.el (block-comment-start, block-comment-end):...
* lisp/nxml/nxml-mode.el (nxml-mode):...
* lisp/progmodes/c-ts-common.el (c-ts-common-comment-setup):...
* lisp/progmodes/go-ts-mode.el (go-work-ts-mode):...
* lisp/progmodes/js.el (js--mode-setup):...
* lisp/progmodes/json-ts-mode.el (json-ts-mode):...
* lisp/progmodes/lua-ts-mode.el (lua-ts-mode):...
* lisp/progmodes/opascal.el (opascal-mode):...
* lisp/progmodes/pascal.el (pascal-mode):...
* lisp/progmodes/typescript-ts-mode.el (tsx-ts-mode):...
* lisp/textmodes/css-mode.el (css-base-mode, scss-mode):...
* lisp/textmodes/sgml-mode.el (sgml-mode): ... to here.
(Bug#77424)