[llvm] [RemoveDIs] Load into new debug info format by default in LLVM (PR #89799)

[Stephen Tozer via llvm-commits]

SLTozer wrote:

Following the failed merge, there's a small functional change and a number of trivial unit test updates needed to fix the patch - since I can't reopen the review, the commit containing the changes is here: https://github.com/SLTozer/llvm-project/commit/a8fed214bfa06d8f06f531f3be505798921a6a93

Anyone able to eyeball it and give reapproval?

https://github.com/llvm/llvm-project/pull/89799