[5.10][Runtime] Handle different types for src and dest in existentialAssig… #71325
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…nWithCopy rdar://117083470 An existential can contain a different type than the one that is being assigned, so we have to check the types and handle the values accordingly.
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tbkka
approved these changes
Feb 6, 2024
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…nWithCopy
(cherry picked from: #71323)
Explanation: An existential can contain a different type than the one that is being assigned, so we have to check the types and handle the values accordingly to prevent leaks and crashes.
Issue: rdar://117083470
Risk: Minimal. Only affects compact value witnesses, which is still experimental.
Testing: Added new test, existing tests still pass.
Reviewer: @mikeash