6459: Check for redundant matches! with Ready, Pending, V4, V6

[torfsen]

Fixes #6459.

changelog: [`redundant_pattern_matching`]: Add checks for `Poll::{Ready,Pending}` and `IpAddr::{V4,V6}` in `matches!`

[rustbot]

Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @llogiq (or someone else) soon.

Please see the contribution instructions for more information. Namely, in order to ensure the minimum review times lag, PR authors and assigned reviewers should ensure that the review label (S-waiting-on-review and S-waiting-on-author) stays updated, invoking these commands when appropriate:

• @rustbot author: the review is finished, PR author should check the comments and take action accordingly
• @rustbot review: the author is ready for a review, this PR will be queued again in the reviewer's queue

[llogiq]

Thank you, this looks good to me.

@bors r+

[bors]

📌 Commit ebc0588 has been approved by llogiq

It is now in the queue for this repository.

[bors]

⌛ Testing commit ebc0588 with merge 7343db9...

[bors]

☀️ Test successful - checks-action_dev_test, checks-action_remark_test, checks-action_test
Approved by: llogiq
Pushing 7343db9 to master...