Add dynamic return type extension for `WP_Term_Query()`

[swissspidy]

Same as GetTermsDynamicFunctionReturnTypeExtension, but just for WP_Term_Query()

See also #48 for WP_Query

Logic is as follows:

https://github.com/WordPress/wordpress-develop/blob/bdc2084b30fd842fe862f656aafd1a7c46c53317/src/wp-includes/class-wp-term-query.php#L314-L339

[owaisahmed5300]

Any update?

[swissspidy]

If there's no comment, there's no update 😉 But you are more than welcome to submit a PR yourself

[IanDelMar]

I would like to point out that we should have a look at php-stubs/wordpress-stubs#134. If we can use conditional return types like this, we can implement them in the stubs. This has the benefit that PHPStan handles all the $argumentType->getConstantSomething() ->yes ->maybe ->no logic for us.