Require types to be contextually canonical in AbstractionPatterns #30284
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Because violations of this might have made an AbstractionPattern incorrectly show up as abstract, it's possible that this will cause an ABI change. However, I haven't been able to find any examples where it does, and certainly there's no way we can promise to maintain the old behavior, especially since it's not done consistently.
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Because violations of this might have made an AbstractionPattern incorrectly show up as abstract, it's possible that this will cause an ABI change. However, I haven't been able to find any examples where it does, and certainly there's no way we can promise to maintain the old behavior, especially since it's not done consistently.