Memory leak with self-referencing constants

[YourKey]

Bug report

In my code, an abstract class uses a constant that refers to itself, forcing the subclass to mandatorily reassign it. This causes a memory leak issue in PHPStan, as the check gets stuck in an infinite loop.

Example:

abstract class AbstractClass
{
    const BASE_URL = self::BASE_URL;
}

final class TestClass extends AbstractClass
{
   const BASE_URL = 'http://example.com';
}

PHPStan version: 1.10.41
PHP version: 8.2
Operating System: MacOS 12.6.3

Code snippet that reproduces the problem

https://phpstan.org/r/8196a92c-91c1-475f-b322-4622fec090d2

Expected output

Recognition of self-referencing constants and reporting it as an error.
Cannot declare self-referencing constant self::BASE_URL

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[ondrejmirtes]

Fixed: phpstan/phpstan-src@93af41b

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