[GSoC][DebugInfo] SROA debug experience and dexter thoughts

Hello, this is a post I compiled to summarize my experience with SROA so far
and to let the community know the results of the project.

Next, I'll look at the InstCombine pass. I will try to fix as many missing dbg.value
cases as possible. I will post another update as soon as I have results.

Thanks for taking a look!

Blog post: https://gramanas.github.io/posts/sroa-debug-experience-and-dexter-thoughts/

And in plain text:

1 Introduction

Thanks for this writeup!