Update lisp/progmodes/verilog-mode.el

Update lisp/progmodes/verilog-mode.el

* lisp/progmodes/verilog-mode.el: Cleanup compile-time warning
suppression.  Use underscore for unused arguments and other style
cleanups.  Use '# for function references.  By Stefan Monnier.
(verilog-auto-reset, verilog-sig-tieoff):
Fix AUTORESET '0 (#1714). Reported by Paul Adams.
(verilog-simplify-range-expression):
Fix AUTOWIRE simplifying X/Y where there is a remainder (#1712).
Reported by Joachim Lechner.
(verilog-read-sub-decls-expr):
Fix multiplication in multidimensional AUTOINST output (#1698).
Reported by alanamckee.
(verilog-at-constraint-p, verilog-at-streaming-op-p, verilog-streaming-op-re):
Add streaming operator support (#1692) (#1516),
(verilog-auto-assign-modport, verilog-auto-inout-modport):
Support adding prefix to AUTOASSIGNMODPORT and AUTOINOUTMODPORT (#1690).
(verilog-signals-matching-dir-re):
Fix error when matching regexp with 2D packed memory.
Reported by Chris DeMarco.
(verilog-declaration-core-re): Allow parameter
declaration statements to align like any other declaration (#1683).
Suggested by Vinam Arora.
(verilog-auto-inout, verilog-auto-inout-in)
(verilog-auto-inout-module, verilog-auto-input, verilog-auto-inst)
(verilog-auto-inst-param, verilog-auto-output-every)
(verilog-signals-matching-regexp)
(verilog-signals-not-matching-regexp):
When "?!" is at the front of a signal-matching regexp, invert it.
(verilog-declaration-varname-matcher)
(verilog-highlight-max-lookahead, verilog-mode)
(verilog-single-declaration-end) (verilog-font-lock-keywords-1):
Improve syntax highlighting in declaration statements, and support
multi-line declarations, #1681.  Reported by Vinam Arora.