Autocorrect for Rails/LinkToBlank is wrong for link_to with parentheses

[kentarohonda]

Auto-correction of Rails/LinkToBlank produces syntactically incorrect code when link_to is used with parentheses.

---

Expected behavior

, rel: 'noopener' is expected to be inserted before the closing parenthesis.

link_to('name', 'http://example.com', target: '_blank', rel: 'noopener')

Actual behavior

, rel: 'noopener' is inserted after the closing parenthesis.

link_to('name', 'http://example.com', target: '_blank'), rel: 'noopener'

Steps to reproduce the problem

Example file(test.rb)

link_to('name', 'http://example.com', target: '_blank')

$ rubocop -R -a test.rb 
Inspecting 1 file
E

Offenses:

test.rb:1:39: C: [Corrected] Rails/LinkToBlank: Specify a :rel option containing noopener.
link_to('name', 'http://example.com', target: '_blank')
                                      ^^^^^^^^^^^^^^^^
test.rb:1:56: E: Lint/Syntax: unexpected token tCOMMA
(Using Ruby 2.2 parser; configure using TargetRubyVersion parameter, under AllCops)
link_to('name', 'http://example.com', target: '_blank'), rel: 'noopener'
                                                       ^

1 file inspected, 2 offenses detected, 1 offense corrected

RuboCop version

$ rubocop -V
0.63.1 (using Parser 2.6.0.0, running on ruby 2.4.5 x86_64-linux)

[koic]

Thanks for the feedback. I opened a PR #6743.