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Add new lint for `Result<T, E>.map_or(None, Some(T))` Fixes #5414 PR Checklist --- - [x] Followed lint naming conventions (the name is a bit awkward, but it seems to conform) - [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 `Result<T, E>` has an [`ok()`](https://doc.rust-lang.org/std/result/enum.Result.html#method.ok) method that adapts a `Result<T,E>` into an `Option<T>`. It's possible to get around this adapter by writing `Result<T,E>.map_or(None, Some)`. This lint is implemented as a new variant of the existing [`option_map_none` lint](https://github.com/rust-lang/rust-clippy/pull/2128) |
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