Merge from origin/emacs-28

e0f54c62ec CC Mode: fontify variables/functions after line comments e...
2c6a94c5b8 ; Correct the meaning of "cf." in tips.texi

doc/lispref/tips.texi

@@ -868,7 +868,7 @@ find an alternate phrasing that conveys the meaning.
 @item
 Try to avoid using abbreviations such as ``e.g.'' (for ``for
 example''), ``i.e.'' (for ``that is''), ``no.'' (for ``number''),
-``cf.'' (for ``in contrast to'') and ``w.r.t.'' (for ``with respect
+``cf.'' (for ``compare''/``see also'') and ``w.r.t.'' (for ``with respect
 to'') as much as possible.  It is almost always clearer and easier to
 read the expanded version.@footnote{We do use these occasionally, but
 try not to overdo it.}

lisp/progmodes/cc-engine.el

@@ -1672,9 +1672,13 @@ comment at the start of cc-engine.el for more info."
 Return the result of `forward-comment' if it gets called, nil otherwise."
   `(if (not comment-end-can-be-escaped)
        (forward-comment -1)
-     (when (and (< (skip-syntax-backward " >") 0)
-		(eq (char-after) ?\n))
-       (forward-char))
+     (let ((dist (skip-syntax-backward " >")))
+       (when (and
+	      (< dist 0)
+	      (progn
+		(skip-syntax-forward " " (- (point) dist 1))
+		(eq (char-after) ?\n)))
+	 (forward-char)))
      (cond
       ((and (eq (char-before) ?\n)
 	    (eq (char-before (1- (point))) ?\\))