[single_match]: Fix duplicate diagnostics

[WeiTheShinobi]

Relates to #12379

edit two test file
tests/ui/single_match_else.rs
tests/ui/single_match.rs

those two test file point to the same lint

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changelog: [single_match] Fix duplicate diagnostics

[rustbot]

Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @dswij (or someone else) some time within the next two weeks.

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[bors]

☔ The latest upstream changes (presumably #12440) made this pull request unmergeable. Please resolve the merge conflicts.

[dswij]

those two test file point to the same lint

FYI, there are two lints defined in single_match.

rust-clippy/clippy_lints/src/matches/single_match.rs

Line 76 in 8e55bbf

let lint = if els.is_some() { SINGLE_MATCH_ELSE } else { SINGLE_MATCH };

[dswij]

Thank you!

@bors r+

[bors]

📌 Commit 8e55bbf has been approved by dswij

It is now in the queue for this repository.

[bors]

⌛ Testing commit 8e55bbf with merge 6ff4e71...

[bors]

☀️ Test successful - checks-action_dev_test, checks-action_remark_test, checks-action_test
Approved by: dswij
Pushing 6ff4e71 to master...