Add support for conditional types, offset access types and key-of, value-of, int-mask, int-mask-of

[mspirkov]

Problem

In https://github.com/yiisoft/yii2-apidoc, we want to handle all possible PHPStan/Psalm types. Currently, this is quite difficult to do, as some types are replaced with Mixed_.

Solution

I propose storing the original TypeNode in Mixed_ so that the type can be restored later.

[jaapio]

I do not want to expose the internal used parser nodes as they are hard to work with.
I think we should add the missing types to cover these use-cases.

[mspirkov]

Okay, I'll get on it.

[jaapio]

Tnx, you might want to have a look at how the other pseudo types are implemented. Maybe we need to remove the final keyword from the mixed type.

[mspirkov]

Done. Please take a look

[mspirkov]

By the way, it's very inconvenient to fix the code style, because Codesniffer is not installed in the repository itself. It's very difficult to understand where the error occurred.

[jaapio]

Can you make sure your new types do extend the Mixed_ type, so we do not have a breaking change because of the changed return type.

For the rests this is very nice. Thanks a lot!

[mspirkov]

Done. The types key-of, value-of, int-mask, and int-mask-of caused exceptions to be thrown, so I don't use Mixed_ there.

[jaapio]

I added a few suggestions to make the implementation complete. After that we can merge this an tag a new release.

Thanks for all your efforts!

[mspirkov]

Done. Thank you for your quick response.

[mspirkov]

I want to add another feature. Can we merge it so we don't have to deal with merge conflicts later?
It seems that a release could be made after adding another feature.