Make some cops aware of safe navigation operator

[hoshinotsuyoshi]

Problem

Most of the cops do not detect &.(safe navigation operator) method offence.

For example, Style/BracesAroundHashParameters does not aware of code that uses &..
:

foo.test({ a: :b }) 
# => Adds an offence(Style/BracesAroundHashParameters).

foo&.test({ a: :b })
# => No offence. :(

(Tested by rubocop v0.62.0.)

This PR will solve some kind of this problem.

Similar PR in past

• [Fix #4836] Make Rails/OutputSafety aware of safe navigation operator #4837
  • It improved Rails/OutputSafety
  • 1db479c

Listing target cops

I listed target cops from two perspectives:

1. Having #on_send but not having #on_csend.
2. Meaningful to implement(as far as I thought ).

Target cops 👮👮👮

Layout/AlignParameters	c7fd520
Layout/ClosingParenthesisIndentation	146e3bf
Layout/DotPosition	9d99087
Layout/EmptyLinesAroundArguments	826cfed
Layout/FirstMethodArgumentLineBreak	e8deefb
Layout/FirstParameterIndentation	e769ca6
Layout/IndentArray	5783565
Layout/IndentationWidth	de1dc7f
Layout/IndentHash	d7b56b8
Layout/SpaceBeforeFirstArg	3ae1e4e
Lint/AmbiguousBlockAssociation	9bcd5c8
Lint/EachWithObjectArgument	8e1945f
Lint/ParenthesesAsGroupedExpression	bedcc22
Lint/RequireParentheses	fa699cb
Rails/ActiveRecordAliases	b35a848
Rails/Date	15da862
Rails/DynamicFindBy	55fc1a5
Rails/FindBy	dadab3d
Rails/SaveBang	c1ec1d1
Rails/SkipsModelValidations	a3ad8b6
Style/BracesAroundHashParameters	d959982
Style/MethodCalledOnDoEndBlock	995f4c1
Style/MethodCallWithArgsParentheses	dcb3b34
Style/NestedParenthesizedCalls	a285622
Style/PreferredHashMethods	5fc114c
Style/Send	4f6c20b
Style/StringMethods	82402bc
Style/TrailingCommaInArguments	fcd785c

TODO

• Squash commits if ok

---

Before submitting the PR make sure the following are checked:

• Wrote good commit messages.
• Commit message starts with [Fix #issue-number] (if the related issue exists).
• Feature branch is up-to-date with master (if not - rebase it).
• Squashed related commits together.
• Added tests.
• Added an entry to the Changelog if the new code introduces user-observable changes. See changelog entry format.
• The PR relates to only one subject with a clear title
  and description in grammatically correct, complete sentences.
• Run bundle exec rake default. It executes all tests and RuboCop for itself, and generates the documentation.

[pocke]

Can you add a test case for this change?
RSpec is still green if I remove this change.

I guess it supports something.some_method = 1 style assignment.

[hoshinotsuyoshi]

RSpec is still green if I remove this change.

Sorry, and thank you!

Pushed 48415e2

[pocke]

Great work! Thiank you for your pull request! 👍 👍

[koic]

My review was delayed.
IMO, I was glad if this PR squashed these commits into one. It is because I wanted to export one commit reason for one change with one cherry-pick when exporting to RuboCop Rails as a real work :-), but thanks anyway!

[hoshinotsuyoshi]

😱 I'm sorry, I intentionally pushed such multiple commits to make it easier to read for review. 🙇

IMO, I was glad if this PR squashed these commits into one.

I knew how to do it and was going to do so.
I should have done so from the beginning!

I will do so next time.

Anyway, thank you !! :)