[ownership] Teach diagnose-unreachable to eliminate end_borrow from g… #22774
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…uaranteed block args when replacing the use of the block arg with a SILFunctionArgument. A guaranteed function argument never is paired with an end_borrow, so when we perform this sort of simplification, we need to eliminate the end_borrow of the block argument.
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@swift-ci smoke test and merge |
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…uaranteed block args when replacing the use of the block arg with a SILFunctionArgument.
A guaranteed function argument never is paired with an end_borrow, so when we
perform this sort of simplification, we need to eliminate the end_borrow of the
block argument.