Detect nullable types in phpdoc

[BladeMF]

Description of the Change

Allow the following syntaxes in phpdoc:

/**
 * @param ?int description
 */

/**
 * @param ?int|?Class description
 */

/**
 * @param ?int[] description
 */

Alternate Designs

I am not aware of any other alternatives.

Benefits

Allow the new nullable type syntax.

Possible Drawbacks

Not aware of any drawbacks. The change is minor.

Applicable Issues

That is a step towards solving the need in this issue.

Note

That is my first pull request to this repo. It's purpose is to be something small that will allow me to learn how to do effective PRs here - learn the rules and pracices, set up the tooling.

My main goal is to ultimately add detection for:

• Psalm complex array types
• PHPStan comments (@phpstan-ignore-line)
• PHPUnit attributes (@test, @dataProvider, etc.)

[KapitanOczywisty]

@sadick254 this PR is ready to be merged :)

[darangi]

Thanks for the contribution 🙇🏾 @BladeMF

[BladeMF]

Thanks! More contributions incoming then :-)