swift

6cd9f0ab - Merge pull request #42490 from AnthonyLatsis/5.7-objc-optional-keypath-fix

Merge pull request #42490 from AnthonyLatsis/5.7-objc-optional-keypath-fix 🍒 [5.7-04182022] Use `AbstractStorageDecl::isSettableInSwift` to prohibit direct writes to `optional` requirements