This commit revert some of the changes added in #27735 because wc_get_products and wc_get_orders is not fully compitable with API controller queries. Since we are close to release 4.9, its better to revert and fix them properly then rush a fix. This undones some the performance improvements we acheived in 27735, in favor of more stability, hopefully we will be able to restore this soon.
We are using func_get_arg method to receive argument in a backward compatible way since we cannot modify function signature to add more params even with default params. Earlier I was hoping to use DI to create another child class with modified signature and load it depending upon where we are executing from, however since we had to revert DI, we add this workaround to unblock #27735.
Primary reason for dropping the cache hydration is that seems like we can acheive the same results without it, so no need to add this additional complexity to our code.
In PHP 8 required parameters after optional parameters in
function/method signatures trigger a deprecation notice. These type
of parameters are pointless since a value needs to always be
provided for them anyway, so they are actually de-facto required.
This commit converts all these not-so-optional parameters into
truly required parameters by removing their default values.