Make [clippy::dump] support trait items

[xFrednet]

Roses are red,
violets are blue,
trait items are rare,
[clippy::dump] is too

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Let's just ignore the horrible poem... anyways. While working on Marker I noticed, that [clippy::dump] doesn't work on trait item (See Playground). This simply adds support for that. [clippy::dump] doesn't have UI tests, to make it more resistant to changes in the AST. I tested it locally and the dump works after these changes.

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changelog: none

[rustbot]

r? @flip1995

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[xFrednet]

I've noticed that it also doesn't work on the implementation of trait functions. I'll fixup the commit :)

[xFrednet]

Okay, now everything should work. I updated the changelog in the PR description :)

[flip1995]

I've noticed that it also doesn't work on the implementation of trait functions. I'll fixup the commit :)

Between this message and

Okay, now everything should work. I updated the changelog in the PR description :)

that message, you didn't push anything. What is this magic you are using? 🧙 🤔

[xFrednet]

Ups, yeah I forgot to push. Finally, I can claim "It works on my mashine" ^^

[flip1995]

That looks better!

@bors r+

Thanks!

[bors]

📌 Commit c642cfe has been approved by flip1995

It is now in the queue for this repository.

[bors]

⌛ Testing commit c642cfe with merge 5adeebf...

[bors]

☀️ Test successful - checks-action_dev_test, checks-action_remark_test, checks-action_test
Approved by: flip1995
Pushing 5adeebf to master...