Request for syntax highlighting support for named arguments in PHP 8

[asispts]

Please support syntax highlighting for named arguments in PHP 8. Currently, the feature/token is detected as constant.other.php, making it difficult to distinguish named arguments from constants.

Code to reproduce

<?php declare(strict_types=1);

#[Attribute(name:'attribute')]
function foobar()
{
    throw new RuntimeException(message:'Exception', code:1);
}

[alexr00]

The folks in https://github.com/KapitanOczywisty/language-php have recently taken on the task of maintaining the PHP syntax highlighting grammar that we use in VS Code 👏 I've moved your issue into that repo: KapitanOczywisty/language-php#7