lint to flag duplicated lint rules

[pq]

TL;DR: add lints to lint rules in analysis options that duplicate included rules (e.g., pedantic).

More context in googlearchive/pedantic#23, where @kentcb wrote:

Here's my situation: I want to use pedantic but I've also got quite a few extra lints that I want enabled. Some of those will almost certainly be included in pedantic itself at some point. Since the point of pedantic is to adhere to Google's standard, the lints I add are useful as a point of difference. However, nothing guarantees that they are a point of difference.

What's the guidance in this situation? It would be nice to know that if my lint configuration becomes redundant at some point (due to a newer pedantic release) that I would be notified, but it seems that this is not the case (I just tried adding a lint that pedantic has already enabled). Is my only recourse to manually pick through the lints I have enabled and see whether they're redundant? Seems finicky.

Ideally, I'd like the problems to be surfaced in the same manner as other lints. For me, that means the PROBLEMS panel in VS Code.

Presubmits are a nice idea, but aren't portable. It's not uncommon for team members to use different operating systems and - in my experience at least - this makes the use of hooks untenable.