InterpreterProxy>>classString should return ByteString

because in #recreateSpecialObjectsArray,

newArray at: 4 put: (self associationAt: #Processor).
 "Numerous classes below used for type checking and instantiation"
 newArray at: 5 put: Bitmap.
 newArray at: 6 put: SmallInteger.
 newArray at: 7 put: ByteString.
 newArray at: 8 put: Array.
 newArray at: 9 put: Smalltalk.

 

and in real interpreter proxy, classString returns ByteString.

So, InterpreterProxy>>classString should return ByteString instead of String.