Bug report

When you create a private read-only hook it says:

Property Foo::$i is never written, only read.
See: [Always-read and written properties](https://phpstan.org/developing-extensions/always-read-written-properties)

PhpStan version: PHPStan - PHP Static Analysis Tool 2.1.4

Code snippet that reproduces the problem

https://phpstan.org/r/6bf969c0-7bb5-4c78-ba72-969f80935d2f

Expected output

No error/warning

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