Bug report

Local PHPStan version: 1.8.6

First class callable function with Closures can make PHPStan crash.

Code snippet that reproduces the problem

Here is the smallest snippet I could write to reproduce:
https://phpstan.org/r/af6aa44b-8fff-4f75-ae92-f9f27f3d2f63

Notice the superfluous first class callable.

The PHP script executes normally and produces:

Hi

Expected output

Here is a fixed snippet:
https://phpstan.org/r/18fa015e-7218-49ae-b7a2-9e7acd51f810

The same OK result is expected for previous snippet.

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