[clang] [clang] Use File Location for debug info resolution. (PR #163982)

[David Blaikie via cfe-commits]

dwblaikie wrote:

> When using `-g` option, the binary size is impacted by less than 0.5% while the debug symbols size is bigger by 8% for macro heavy code-bases.

8% "debug symbols size" (what do you mean by that/how did you measure it?) is pretty severe perhaps a `bloaty` ( https://github.com/google/bloaty ) comparison for this macro heavy code you mentioned?

https://github.com/llvm/llvm-project/pull/163982