* Correctly fold ptrToInt on optional types * Generate null as ConstPtrSpecialNull in intToPtr * Correctly stop ptrToInt on ?*T where T is zero-sized Closes #4535
* Correctly fold ptrToInt on optional types * Generate null as ConstPtrSpecialNull in intToPtr * Correctly stop ptrToInt on ?*T where T is zero-sized Closes #4535