swift

22ab7238 - [AutoDiff] Fix usefulness propagation for array literal initialization. (#28259)

[AutoDiff] Fix usefulness propagation for array literal initialization. (#28259) Handle two more cases in `setUsefulAcrossArrayInitialization`: - `copy_addr` user of `pointer_to_address` result. - `copy_addr` user of `index_addr` user of `pointer_to_address` result. The strategy is still to selectively propagate usefulness through array initialization intrinsic applications to prevents values from being marked as active unnecessarily. Partially resolves TF-952.