With a few seconds thought I am thinking that maybe UTF8Conversion.h or UTF8Transcoding.h are possible better ideas for new names. Neither is completely accurate. If we were going to add the word “helpers” than I would say UTF8Helpers.h, but I really don’t like those kinds of word in header names (“utilities”, “helpers”, “functions”, “classes”).

A separate issue once we rename: the header is also pretty old and crufty. Eventually we might want to remove or refine the functions in here. Not sure how widely they are used.