Generating imenu index doesn't require going down to the bottom of the
tree (defun's are usually top-level). Add limit so we don't go too
far down on very large buffers.
* lisp/progmodes/c-ts-mode.el (c-ts-mode--imenu)
* lisp/progmodes/java-ts-mode.el (java-ts-mode--imenu)
* lisp/progmodes/js.el (js--treesit-imenu)
* lisp/progmodes/json-ts-mode.el (json-ts-mode--imenu)
* lisp/progmodes/python.el (python-imenu-treesit-create-index)
* lisp/textmodes/css-mode.el (css--treesit-imenu): Add limit to
treesit-induce-sparse-tree.
(c-ts-mode--base-mode): Extract comment-* so that we can separate
between C and C++.
(c-ts-mode, c++-ts-mode): Set comment-* variables.
* lisp/progmodes/css-ts-mode.el (css-ts-mode): Add electric-indent.
* lisp/progmodes/java-ts-mode.el
(java-ts-mode--imenu): Add categories. Only display categories that
exist in the file.
(java-ts-mode): Add electric-indent.
* lisp/progmodes/json-ts-mode.el
(json-ts-mode): Add electric-indent.
* lisp/progmodes/ts-mode.el
(ts-mode--font-lock-settings): Whitespace cleanup.
(ts-mode): Add electric-indent.
* etc/NEWS: Mention the new modes
* lisp/progmodes/c-ts-mode.el: New major mode with tree-sitter support
for C and C++.
* lisp/progmodes/java-ts-mode.el: New major mode with tree-sitter support.
* lisp/progmodes/json-ts-mode.el: New major mode with tree-sitter support.
* lisp/progmodes/css-ts-mode.el: New major mode with tree-sitter support.
