[llvm-branch-commits] [Remarks] Restructure bitstream remarks to be fully standalone (PR #156715)

[Francis Visoiu Mistrih via llvm-branch-commits]

francisvm wrote:

Thanks for putting in the work to simplify this. Could you please update the description with a summary of the new flow of how remarks are emitted and parsed in both modes? I'll keep reviewing this over the next few days.

https://github.com/llvm/llvm-project/pull/156715