- Most immediately, we now have `withoutActuallyEscaping` as a supported way to temporarily reference a nonescaping closure as if it were escapable, and we plan to break the ABI for escaping and nonescaping closures so that the old `unsafeBitCast` workaround no longer works.
- `unsafeBitCast` is also commonly used to kludge pointers into different types, but we have more semantically meaningful APIs for type punning now. Guide users towards those APIs.
- Suggest more specific and type-safe operations, like `bitPattern:` initializers or `unsafeDowncast`, for the situations where `unsafeBitCast` is being used to avoid dynamic type checks or reinterpret numerical bits.
