Generally, you should override #printOn: in your classes to give more meaningful (and typically shorter) names than ModuleHASH`NestedClassHASH#HASH.
If you really need to look at a long name, you can evaluate #printString against the object and look at it in its own inspector, where the Text view will display it across multiple lines.
If you are seeing whitespace after an abbreviated name, this is a UI layout bug. Most of the debugger was written before Brazil supported #compressibility:.