Remove unused variables in compile_submatch.
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Just an minor cleanup. Signed-off-by: OGINO Masanori <masanori.ogino@gmail.com>
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Nov 23, 2021
Fixes shadow_same's false positive for rust-lang#7915 Fix shadow_same's false positive for async function's params(Fixes rust-lang#7915): Example Code: ```rust #![deny(clippy::shadow_same)] pub async fn foo(_a: i32) { } ``` Output: ``` error: `_a` is shadowed by itself in `_a ``` Hir: ```rust pub async fn foo(_a: i32) -> /*impl Trait*/ #[lang = "from_generator"](move |mut _task_context| { let _a = _a; { let _t = { }; _t } }) ``` Skip checking async function's params. changelog: Fix shadow_same's false positive for async function's params
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Just an minor cleanup.