[clang] [clang-tools-extra] [lldb] [clang] Extend SourceLocation to 64 bits. (PR #147292)

[Erich Keane via cfe-commits]

erichkeane wrote:

> > Why is this a new review? What changed from the last one I looked at?
> 
> Ah, right -- this patch is actually derived from the previous one, and it is simpler. That older patch became a bit outdated since some of its changes were split out and already landed in main. I found it easier to start fresh with a new patch rather than rebasing the old one.
> 
> That said, if you’d prefer to stick with the old review (to preserve the initial comments there), I can force-push this patch to the old review instead.

Ah, not a problem, the new one is fine.  I was just very thrown/wondering why I was reviewing something so similar again.

https://github.com/llvm/llvm-project/pull/147292