swift

317ef498 - [AutoDiff] Destroy unused pullback direct results. (#28207)

[AutoDiff] Destroy unused pullback direct results. (#28207) In `PullbackEmitter::visitApplyInst`, destroy unused pullback direct results. This is needed for VJPs extracted from `@differentiable` function callees, where the `@differentiable` function's differentiation parameter indices are a superset of the active `apply` parameter indices. Resolves TF-953.