incorrect error "$this" can no longer be unset

[WanWizard]

Describe the bug

Running ~/.composer/vendor/bin/phpcs -p . --standard=PHPCompatibility --runtime-set testVersion 8.5 on my codebase.

I get the error ""$this" can no longer be unset since PHP 7.1.", but this is not what is happening in the code, see the offending line below.

Code sample

unset(static::$_cached_objects[get_called_class()][static::implode_pk($this)]);

To reproduce

Steps to reproduce the behavior:

1. Create a php file containing the given line
2. Run phpcs with the given line
3. See error message displayed

---------------------------------------------------------------------------------
FOUND 1 ERROR AFFECTING 1 LINE
---------------------------------------------------------------------------------
 1730 | ERROR | "$this" can no longer be unset since PHP 7.1.
---------------------------------------------------------------------------------

Expected behavior

Not being shown this error, $this is not being unset on this line, it is used as an argument to a function.

Versions (please complete the following information)

Operating System	[e.g., Windows 10, MacOS 10.15]
PHP version	[8.5.0]
PHP_CodeSniffer version	[3.13.5 stable]
Standard	PHPCompatibility]
Install type	Composer, local]

Additional context

Add any other context about the problem here.

Please confirm:

• I have searched the issue list and am not opening a duplicate issue.
• I confirm that this bug is a bug in PHP_CodeSniffer and not in one of the external standards.
• I have verified the issue still exists in the master branch of PHP_CodeSniffer.

[jrfnl]

Please don't open issues in this repo anymore. This repo is abandoned and https://github.com/PHPCSStandards/PHP_CodeSniffer is its successor. See: #3932

Other than that, closing as reported to the wrong repo.

You are reporting an issue coming from the external standard PHPCompatibility. The issue should be reported to that project, not here: https://github.com/PHPCompatibility/PHPCompatibility

As an aside, I'm pretty sure what you are reporting has already been fixed in PHPCompatibility and suggest you first test with the 10.0.0-alpha2 release before opening an issue in that repo.

[WanWizard]

Sorry about that, learning all the time...