Summary of a problem or a feature request

json_decode has second parameter to determine if result is an array or \stdClass. It would be nice to catch cases when there's no assoc: true, and code is trying to access the result of json_decode as an array and vice versa.

Code snippet that reproduces the problem

No error for:

<?php declare(strict_types = 1);

$data = json_decode('{"foo": "bar"}');

$foo = $data['foo'];

https://phpstan.org/r/936624ae-ac3f-4f70-afad-e6480a19a6e6

Expected output

Cannot use object of type stdClass as array

https://3v4l.org/KCXIa