[clang] [clang] Make source locations space usage diagnostics numbers easier to read (PR #114999)

[Ilya Biryukov via cfe-commits]

ilya-biryukov wrote:

> Yes, I was considering both options. It might be useful to see the full number in case you want to diff between logs, and the diff would be relatively small (people might care about zero diff vs. tiny diff), so I decided to make this change not lose any information.

Makes sense, and given that it's a relatively infrequently surfaced feature, I think it's fine to change our mind on that later.


https://github.com/llvm/llvm-project/pull/114999