Bug report

Hello, I have a problem with the declaration of multiple class properties in a single line with the nullable operator. The problem is that phpstan see only the first defined property as nullable. Others are not nullable so phpstan reports a lot of bugs related to that. It is possible that the problem is direct in the class reflection.

Tested with:
phpstan: 0.12.7
php: 7.4.1
docker image: php:7.4.1-apache-buster

Code snippet that reproduces the problem

https://phpstan.org/r/eaf8a8d9-8f73-4d82-bb5c-64d3fef30def

Expected output

This snippet of code should be without any errors at the level 8.
Instead of that there are 2 reports:

Line 16: Property CreateStatementRequest::$endDate (DateTimeImmutable) does not accept DateTimeImmutable|null.

Line 40: Strict comparison using === between DateTimeImmutable and null will always evaluate to false.