Fix a "wrong side of point" error in CC Mode. Fixes bug #28850.

Fix a "wrong side of point" error in CC Mode.  Fixes bug #28850.

The cause was a scanning over a bracket pair taking us beyond the supplied
LIMIT parameter in c-forward-declarator.

* lisp/progmodes/cc-engine.el (c-forward-declarator): Add three checks (<
(point) limit) whilst dealing with tokens after the declared identifier.

* lisp/progmodes/cc-fonts.el (c-font-lock-declarators): Don't supply a LIMIT
argument to `c-forward-declarator' (twice), since we want to fontify up till
the end of a declarator, not an arbitrary jit-lock chunk end.