Add support for PHP 8.4 Property Hooks

[Roman3349]

These rules fail when using Property Hooks:

• SlevomatCodingStandard.Classes.PropertySpacing.IncorrectCountOfBlankLinesAfterProperty
• SlevomatCodingStandard.Commenting.InlineDocCommentDeclaration.InvalidFormat

And also:

An error occurred during processing; checking has been aborted. The error message was: Undefined array key "" in vendor/slevomat/coding-standard/SlevomatCodingStandard/Helpers/TernaryOperatorHelper.php on line 59
The error originated in the SlevomatCodingStandard.ControlStructures.RequireMultiLineTernaryOperator sniff on line 60. (Internal.Exception)

[kukulich]

PHPCSStandards/PHP_CodeSniffer#734

[michaelw85]

I'm just testing the current state using this example:

class PropertyHooks
{
    public string $email {
        get => 'mailto:' . $this->email;
        set(string $value) {
            $this->email = $value;
        }
    }
}

Results in:

Fatal error: Uncaught TypeError: SlevomatCodingStandard\Sniffs\Classes\PropertySpacingSniff::isNextMemberValid(): Argument #2 ($pointer) must be of type int, null given, called in /..../vendor/slevomat/coding-standard/SlevomatCodingStandard/Sniffs/Classes/AbstractPropertyConstantAndEnumCaseSpacing.php on line 85 and defined in /...../vendor/slevomat/coding-standard/SlevomatCodingStandard/Sniffs/Classes/PropertySpacingSniff.php on line 66

[kukulich]

Basic support is in release 8.19.0.