Validate attribute usage - check argument value expressions

[ondrejmirtes]

https://psalm.dev/r/abfe5a5e56

Expected: access to an undefined constant

[psalm-github-bot]

I found these snippets:

https://psalm.dev/r/abfe5a5e56

<?php

#[Attribute]
class Foo
{
    public function __construct(int $i)
    {
    }
}

#[Foo(self::BAR_CONST)]
class Bar
{
}

Psalm output (using commit be275ae):

No issues!

[AndrolGenhald]

Fixed by #7713, now reports UndefinedConstant.