[llvm] Rename GsymDIContext to GsymContext (PR #140227)

[Danila Malyutin via llvm-commits]

danilaml wrote:

@sfc-gh-mkwiczala I tried checking out 85fe4ab8a3faa58317c247051df2195c89bed0fa and was able to reproduce the failing test. Then I did `git checkout` 4b104c68530581cb72da687b6edf61f5e799b5c1 (it's parent) and the issue was still there, so something earlier caused it and it wasn't detected due to its flaky nature.

Note, that I was only able to repro the issue in Release mode. When I built with debug info, the test didn't fail, so perhaps that's why you couldn't reproduce it. I'll see if I could bisect it to anything specific (I see there were some changes to lib/DebugInfo around that time, so might be something related).

https://github.com/llvm/llvm-project/pull/140227