swift234

stdlib: Implement "_isValidSubscript(_:hoistedIsNativeNoTypeCheckBuffer:)" for ContiguousArrayBuffer.

ContiguousArrayBuffer is used as the buffer for Array when ObjC interop is disabled, so even though there's no behavior difference from "_isValidSubscript(_:hoistedIsNativeBuffer:)" for a ContiguousArrayBuffer, we want the interface to be interchangeable with the one for the bridgeable ArrayBuffer.

Swift SVN r27409