KeywordIdents Lint fix

[Bryntet]

Fixes #155008

reverts a change from #152369 that shouldn't have been made

If I remember correctly, I made it buffer this lint at some point during the process of trying to get the lint-attrs in the right order/sorted correctly, and should've removed this.

Since we now always have the attributes properly sorted now when this lint is emitted, there is no need to buffer it

the issue was caused by that there is another run through of all crate level lint attrs (which might be possible to remove in a later PR?), which overwrote the lint Level before all buffered lints were emitted

Edit: it has to do with the test that failed, which previously (before #152369) was wrong, see #132218 and this commit

[rustbot]

r? @jieyouxu

rustbot has assigned @jieyouxu.
They will have a look at your PR within the next two weeks and either review your PR or reassign to another reviewer.

Use r? to explicitly pick a reviewer

Why was this reviewer chosen?

The reviewer was selected based on:

• Owners of files modified in this PR: compiler
• compiler expanded to 69 candidates
• Random selection from 12 candidates

[JonathanBrouwer]

Approved if we don't revert #152369

View changes since this review

[JonathanBrouwer]

This PR should be integrated in the new attribute lint port attempt, rather than being a separate PR