Merge from origin/emacs-29

Merge from origin/emacs-29

861556c1339 Fix minibuffer-completion tests
c0578edc8fc ; * doc/misc/eglot.texi (Troubleshooting Eglot): Fix typo...
c6bbf9cc270 Add c-ts-mode tests
a760364f5f3 Fix c-ts-mode--fill-paragraph
2a2b1d09ac7 Fix minor issues with 'pp' and related commands
dfb38fb2ee6 ; Improve documentation of tree-sitter node comparison
e8a89a18b69 ; Fix non-tree-sitter builds
f27a330b99e ; Fix typo in ert-with-temp-file
956889d8ff1 Equal now recognizes tree-sitter nodes (bug#60659)
8f446c2d397 Fix c-ts-mode comment indentation (bug#60270)
083badc9c12 * lisp/subr.el (while-let): Use if-let, not if-let* (bug#...
9ecebcdded1 * lisp/simple.el (next-completion): Handle first completi...
cfd2b3504ab Fix encoding with 'utf-8-auto'
53b47df8229 Report cursor correctly on PGTK when there is a margin

# Conflicts:
#	etc/NEWS