357c6a7e27
New Lint: Manual Flatten This is a draft PR for [Issue 6564](https://github.com/rust-lang/rust-clippy/issues/6564). r? `@camsteffen` - \[x] Followed [lint naming conventions][lint_naming] - \[x] Added passing UI tests (including committed `.stderr` file) - \[x] `cargo test` passes locally - \[x] Executed `cargo dev update_lints` - \[x] Added lint documentation - \[x] Run `cargo dev fmt` --- *Please write a short comment explaining your change (or "none" for internal only changes)* changelog: Add new lint [`manual_flatten`] to check for loops over a single `if let` expression with `Result` or `Option`. |
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