Debugger: Have Python dumper print type size information.
For memory views. In the dumper, create a cache of TypeInfo structs to contain type information and print the new entries in each call of bb(). Collect the information in the gdb engine. Replace WatchData::origAddress by WatchData::ReferencingAddress to be able to correctly handle automatically dereferenced pointers of the gdb engine. Whereas 'address' of a automatically dereferenced used to be that of the pointer, it is now that of the dereferenced item matching the size reported, enabling memory views. Referencing address is now the address of the pointer. Reviewed-by: hjk