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try_normalize_after_erasing_regions: promote an assertion to always run #104522

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Merged
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Nov 20, 2022
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try_normalize_after_erasing_regions: promote an assertion to always run #104522

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4 changes: 3 additions & 1 deletion compiler/rustc_traits/src/normalize_erasing_regions.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,9 @@ fn try_normalize_after_erasing_regions<'tcx, T: TypeFoldable<'tcx> + PartialEq +
// We don't care about the `obligations`; they are
// always only region relations, and we are about to
// erase those anyway:
debug_assert_eq!(
// This has been seen to fail in RL, so making it a non-debug assertion to better catch
// those cases.
assert_eq!(
normalized_obligations.iter().find(|p| not_outlives_predicate(p.predicate)),
None,
);
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