bug#42841: 28.0.50; [ruby-mode] ruby-{beginning,end}-of-block doesn't work as is exepected if arguments of method is divided into multi line

[Yasuhiro KIMURA]

From: Dmitry Gutov <dgutov@yandex.ru>
Subject: Re: bug#42841: 28.0.50; [ruby-mode] ruby-{beginning,end}-of-block 
doesn't work as is exepected if arguments of method is divided into multi line
Date: Sat, 22 Aug 2020 03:26:15 +0300

> I can't seem to reproduce this. Even after some intensive testing.
> 
>> Wrong type argument: number-or-marker-p, nil
> 
> Could you perhaps provide a backtrace?
> 
> Type M-x toggle-debug-on-error, then trigger the error again.

I started emacs with '-Q' option and got following backtrace.

Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil)
  ruby-move-to-block(1)
  ruby-end-of-block(1)
  funcall-interactively(ruby-end-of-block 1)
  call-interactively(ruby-end-of-block nil nil)
  command-execute(ruby-end-of-block)

---
Yasuhiro KIMURA