[clang] [NFC] Updating Debug Info generation for 'this' (PR #119445)

[Michael Buch via cfe-commits]

Michael137 wrote:

Don't see a problem with this but could we elaborate on the motivation for this? Looks like this is required for https://github.com/llvm/llvm-project/pull/119041? Why is that?

The original change this is based on is: https://github.com/microsoft/DirectXShaderCompiler/pull/6296? Which makes it sounds like it does affect the generated debug-info. I'm confused as to what's NFC and what's not

https://github.com/llvm/llvm-project/pull/119445