* * lisp/cedet/semantic: Use lexical-binding in the generated grammars

* * lisp/cedet/semantic: Use lexical-binding in the generated grammars

* admin/grammars/c.by (typesimple): Bind `semantic-c-classname` dynamically.

* lisp/cedet/semantic/bovine.el: Use lexical-binding.
(semantic-lambda): Silence warnings if the `vals` arg is not used.

* lisp/cedet/semantic/grammar-wy.el: Re-generate.

* lisp/cedet/semantic/bovine/grammar.el: Use lexical-binding.
(bovine-grammar-expand-action): Silence warnings if some of the
`vals`, `start`, or `end` args is not used.
(bovine--make-parser-1): Use lexical-binding in the generated files.

* lisp/cedet/semantic/wisent/grammar.el: Use lexical-binding.
(wisent--make-parser-1): Use lexical-binding in the generated files.