RTTI data layout flaw

[Martin von Loewis]

> One choice which might work is some kind of __class_proxy_type_info,
> which contains a single member pointing to the real __class_type_info
> object with weak linkage.

Alternatively, wouldn't it be sufficient to hava an
__incomplete_type_info, with no additional data? That could have weak
linkage, and be overridden by the __class_type_info, if one is
provided in the complete program.

Regards,
Martin