[clang-tools-extra] [clang-doc] Wire Markdown parser into MDGenerator for fenced code blocks (PR #201746)

[Erick Velez via cfe-commits]

evelez7 wrote:

It's pretty hard to review code like this since this contains all the changes present in the other PR, so we can't distinguish the diffs since they're both against main. Technically this isn't stacked on #200302 since it's not being compared against that branch.

LLVM has a couple ways to do stacked PRs. There's spr (which I never used thanks to Paul's warnings) and [Graphite](https://llvm.org/docs/GitHub.html#using-graphite-for-stacked-pull-requests). If you want to keep your work compartmentalized I suggest learning it. It's pretty helpful.

You could also just compare this branch against your first one but I don't think that scales well.

https://github.com/llvm/llvm-project/pull/201746