End-of-line disable comments can't be used to disable an offense in a comment

[jeffkowalski]

Per @jonas054 in #1625:

End-of-line disable comments can't be used to disable an offense in a comment, currently. It will work like the other kind of disable comment, the one that needs an enable. It's an edge case, but it seems like a bug to me.

@jeffkowalski Please open a new issue. If you mention me in it, I will try to fix the problem.

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Expected behavior

Disable an offense for a single-line comment, returning the enable state afterward

Actual behavior

Disable comment has no effect on code comment

Steps to reproduce the problem

$ cat test.rb 
# coding: utf-8     # rubocop:disable Style/Encoding
# frozen_string_literal: true

$ rubocop test.rb
Inspecting 1 file
W

Offenses:

test.rb:1:1: W: Lint/MissingCopEnableDirective: Re-enable Style/Encoding cop with # rubocop:enable after disabling it.
# coding: utf-8     # rubocop:disable Style/Encoding
^

1 file inspected, 1 offense detected

RuboCop version

Include the output of rubocop -V or bundle exec rubocop -V if using Bundler. Here's an example:

$ rubocop --version
0.78.0