[clang] [llvm] Add option to generate additional debug info for expression dereferencing pointer to pointers. (PR #94100)

[Stephen Tozer via cfe-commits]

SLTozer wrote:

Yes, to my knowledge Swift emits dbg.values out of its front end, so there's probably no reason (on the LLVM side) that clang couldn't do so as well. There might be good reasons internal to clang that it doesn't use debug values atm, and it's not inconceivable that we'd hit some cases that LLVM handles poorly at the moment (right now assignment tracking depends on reading dbg.declares, for example), but that's something that could be tackled in a separate review.

https://github.com/llvm/llvm-project/pull/94100