Bug report

Specifically with stream_socket_server which under both failure and success populates the relevant arguments. The functionMap entry appears correct (to my eyes). Creating the variables beforehand and explicitly typing them, culminating in:

/** @var int */
$errorCode = 0;
/** @var string */
$errorMessage = '';

before the call to stream_socket_server, does not fix the issue.

Code snippet that reproduces the problem

https://phpstan.org/r/d2e08603-60e2-4a92-ba94-1acbc44a6329

Expected output

No errors for this case.

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