Does not return two types of data

[dmitrach]

Describe the bug
Does not return two types of data.

Example:

?bool => bool

There should be the following:

?bool => bool|null

Code

protected function checkPricingRule(PricingRule $pricingRule): ?bool
{}

Screenshots

Enviroment (please complete the following information):

OS: Ubuntu 20.04
VS Code: 1.45.1, the extension: 1.1.2
Language: PHP

[rteano]

this is also the same with typescript, it does not recognize multiple types