Conditional return type for `SQLite3Result::fetchArray()`

[devnix]

I'm aware that this change can be wrong or incomplete. I was wondering if there is a way in this project to do tests for types, for example https://github.com/azjezz/psl/blob/next/tests/static-analysis

[ondrejmirtes]

You mean tests for types? Sure: https://phpstan.org/developing-extensions/testing#type-inference

Here most of them are in NodeScopeResolverTest.