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fix: Lowering crash with supertrait predicates - #21364
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OK, I think this code is good to go now. Let me know what you think. |
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LGTM, minus one nit. Also rebase.
Previously both valid and invalid Rust code could crash r-a due to a cyclic query during lowering.
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Rebased and resolved all comments :) |
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Previously both valid and invalid Rust code could crash r-a due to a cyclic query during lowering.
Closes #21006
AI disclosure: I haven't worked on the lowerer before, so I created the first draft of this code with Claude. However, I've reviewed all the code myself (to the best of my ability), wrote the comments myself, verified that the added test fails without these changes, and I will apply my human brain to any feedback on the PR. I hope that's OK.