I happened to notice this page (https://clang-analyzer.llvm.org/filing_bugs.html) was a bit stale, so I've updated and simplified it a bit.
- The page is now explicitly in UTF-8 (NFC)
- We no longer talk about Bugzilla and Apple's bug reporting tools, but instead link to GitHub's issues page
- We now link to the general LLVM documentation on how to submit a bug