`objdiff-cli report changes` does not account for renames

[ribbanya]

It breaks if you rename a function or a translation unit.

The simplest solution would be to compare sections and functions by virtual address, rather than by name. It seems that changes would need to be restructured to compare the sections and functions across the whole project, instead of looping through the translation units. Then maybe they can be regrouped into units before outputting the JSON.

Would any projects have a problem with using virtual addresses instead of names?