|Do you know where your variables are?|
This is merely for a debugging module to offer hints for what's going on under the hood.
I understand that, but I still can't see the purpose. That is, to derive any benefit from a hint that a module was required rather than used, when debugging or otherwise, there would have to be some practical, effective difference in the way the module performed in those two scenarios. If there is no difference, then there is no benefit to knowing.
And if there is a difference, then eventually someone is going to find a way of either:
Since I couldn't (and still cannot) think of any difference in the way a module would perform dependant upon whether it was required or used, I couldn't see the benefit of jumping through hoops to make the determination.
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.