bug#21816: elisp-mode-tests fails on a case-preserving filesystem

[Dmitry Gutov]

On 11/03/2015 10:25 PM, Random832 wrote:
> How are you going to canonicalize though?
>
> Case as it exists on the filesystem? What if the file doesn't exist?

Then we have no business using it together with xref.

In any case, we should put a pin in this discussion: equality 
comparison, aside from writing tests, is basically only useful for 
removing duplicates. As far as I know, of course.

This subject has come up before, and the decision at the time was to let 
the function that produces the list of xrefs, remove the duplicates.

Most likely, it's already familiar with what kind of items it's 
returning, the types of their fields, and etc. I understand that may not 
always be true, but we're yet to produce a realistic example of that 
situation.