How to extract types of variables and its uid?

[Swati Rathi]

On Friday 10 April 2015 01:00 PM, Richard Biener wrote:
>> Or is there any other unique feature to distinguish between two tree types,
>> >other than type uid?
> Depends on the definition of the equality relation.
We have considered the file name and line number where the types are 
defined as a unique feature to distinguish between two tree types.
Thanks a lot. :-)

Regards,
Swati