[libc-commits] [libc] [libc] Implemented CharacterConverter push/pop for utf32->utf8 conversions (PR #143971)

[Brooks Moses via libc-commits]

https://github.com/brooksmoses commented:

This generally looks good, though I have a number of detail-level comments, and some comments about consistency with https://github.com/llvm/llvm-project/pull/143973.  (It may make more sense to fix the consistency issues in a followup PR after landing these two, rather than trying to do it before landing.)

https://github.com/llvm/llvm-project/pull/143971