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Rollup merge of #103018 - Rageking8:more-dupe-word-typos, r=TaKO8Ki

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More dupe word typos

I only picked those changes (from the regex search) that I am pretty certain doesn't change meaning and is just a typo fix. Do correct me if any fix is undesirable and I can revert those. Thanks.
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Dylan DPC 2022-10-14 16:19:15 +05:30 • committed by GitHub
commit 77064b7f0a
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compiler/rustc_mir_build/src/thir/pattern/usefulness.rs
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@ -885,7 +885,7 @@ fn is_useful<'p, 'tcx>(
// that has the potential to trigger the `non_exhaustive_omitted_patterns` lint.
// To understand the workings checkout `Constructor::split` and `SplitWildcard::new/into_ctors`
if is_non_exhaustive_and_wild
// We check that the match has a wildcard pattern and that that wildcard is useful,
// We check that the match has a wildcard pattern and that wildcard is useful,
// meaning there are variants that are covered by the wildcard. Without the check
// for `witness_preference` the lint would trigger on `if let NonExhaustiveEnum::A = foo {}`
&& usefulness.is_useful() && matches!(witness_preference, RealArm)