@var variable not found if initialized in a test

[jolan78]

Bug report

when a variable designated in a @var type $variable phpdoc comment is initialized in a test, phpstan fails to find it : Variable $variable in PHPDoc tag @var does not exist.

Code snippet that reproduces the problem

https://phpstan.org/r/9566e566-3fb7-40a3-9620-fb08ab0791b1

Expected output

no error

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