[AutoDiff] Conform Optional
to Differentiable
.#32948
Merged
dan-zheng merged 2 commits intoswiftlang:masterfrom Jul 17, 2020
Merged
[AutoDiff] Conform `Optional` to `Differentiable`.#32948dan-zheng merged 2 commits intoswiftlang:masterfrom
dan-zheng merged 2 commits intoswiftlang:masterfrom