False ODR violation positives on anonymous namespace types

[Jason Merrill]

On 05/11/2015 12:46 PM, Jan Hubicka wrote:
> Well, my main motivatoin to extend from RECORD_OR_UNION_TYPE_P was to handle
> enums. But other case I would like to deal with are integer types - i.e. preserve
> difference between char/signed char/unsigned char/short/int/long/wchar in cases
> where they structurally coincide.

In what context?  Won't you get that from comparing e.g. the field types 
of two definitions of the same class?

Jason