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[spec] Fix subtyping rules for bottom heaptypes#2116

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rossberg merged 1 commit intomainfrom
fix.2115
Mar 16, 2026
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[spec] Fix subtyping rules for bottom heaptypes#2116
rossberg merged 1 commit intomainfrom
fix.2115

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@rossberg
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Fixes #2115 in the spec. Also adjusts the interpreter to not be correct by accident. Add some test cases as well.

@raoxiaojia, PTAL.

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lgtm, I think this blocks the entire pathological matching completely.

@rossberg rossberg merged commit d2906df into main Mar 16, 2026
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@rossberg rossberg deleted the fix.2115 branch March 16, 2026 14:16
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[spec] Matching relation for specialised bottom heap types collapses them into equivalence via transitivity

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