Is it safe to use 'is' to compare types?

[Yuxuan Shui via Digitalmars-d-learn]

On Monday, 7 March 2016 at 16:13:45 UTC, Steven Schveighoffer 
wrote:
> On 3/4/16 4:30 PM, Yuxuan Shui wrote:
>> On Friday, 4 March 2016 at 15:18:55 UTC, Steven Schveighoffer 
>> wrote:
>>>[...]
>>
>> Thanks for answering. But I still don't understand why 
>> TypeInfo would
>> need to be allocated. Aren't typeid() just returning 
>> references to the
>> __DxxTypeInfo_xxxx__initZ symbol?
>
> You misunderstood, I meant the typeinfo *for* an allocated 
> object, not that the typeinfo was allocated.
>
> In some cases, 2 different objects allocated from different 
> libraries (usually DLL-land) may reference TypeInfo from 
> different segments, even though the TypeInfo is identical.
>
> -Steve

Hmm... Does that mean each DLL will have their own TypeInfo 
symbols for the same type?