[clang] [FixIt] Improve Source Ranges and Fix-It Hints for Unused Lambda Captures #106445 (PR #117953)

[Erich Keane via cfe-commits]

erichkeane wrote:

> @erichkeane this is still doing lexing things in Sema, I was actually wondering if you had suggestions :D

Ah, i thought I'd mentioned on this before.  Yeah, I very much would expect all of the work this is doing to be possible in the parser.  Sema shouldn't be setting ranges, that is the responsibility of the parser, who knows where the actual lines/stuff is.

https://github.com/llvm/llvm-project/pull/117953