Summary of a problem or a feature request

When a null comparison is store on a variable, it not considered by PHPSTan.

It's a retry of #800. There is already #647 and #701 about assignments in conditions, but I'm not sure it's related. For my case, it's not directly an assignment but a comparison stored on a boolean variable.

See the sample. If it's indeed the same issue, sorry for that and feel free to close. 👍

Code snippet that reproduces the problem

https://phpstan.org/r/24dc69b2-908a-4137-842c-c4880a6d1f59

Expected output

Nothing.