Merge from verilog-mode upstream.

Merge from verilog-mode upstream.

* lisp/progmodes/verilog-mode.el (verilog-read-decls): Fix parsing "@ (* )" (#1829).
(verilog-indent-ignore-p): Fix indent of comments being
wrongly detected as multiline defines.  Reported by Gonzalo Larumbe
<gonzalomlarumbe@gmail.com>.
(verilog-pos-at-end-of-statement): Fix minor bug in
`verilog-pos-at-end-of-statement' assuming `verilog-end-of-statement`.
Reported by Gonzalo Larumbe <gonzalomlarumbe@gmail.com>.
(verilog-in-generate-region-p):
Fix indentation of generate blocks omitting keyword.
Reported by Gonzalo Larumbe <gonzalomlarumbe@gmail.com>.