swift

33bc1be1 - Embedded: fix OOM in `swift-frontend` with recursive generics (#88296)

Embedded: fix OOM in `swift-frontend` with recursive generics (#88296) **Explanation**: Provides an error diagnostic that notifies the user that recursive generics are not supported in Embedded Swift. This prevents current OOM behavior in `swift-frontend`. **Scope**: limited to a rarely used pattern in Embedded Swift **Risk**: low due to limited scope. **Testing**: added new lit test **Issue**: rdar://174011486