Bug report

(Closure::bind($this->hydrate(), $instance, get_class($instance)))($fieldToValue);
The existing $this->hydrate() function errors with "Call to an undefined method".

Happens in version 0.11.19 (report level 6) as well as the latest version as the playground shows.
A fix for both would be great!

Code snippet that reproduces the problem

https://phpstan.org/r/ff2fa776-026c-43c7-ac75-de530cad4207

A smaller snippet says

Undefined variable: $this

https://phpstan.org/r/8e2b4bdb-668f-4ef3-935d-937d13cc6058

which may be the same or another problem

Expected output

Test is green.