review request for 6798511/6860431: Include functionality of Surrogate in Character -> use scenarios

[Martin Buchholz]

I wish there had been more collaboration between the
jdk developers (including myself) and the icu
developers in the past.  There has certainly been
a fair amount of duplication of effort in the
character encoding area.

>>> Maybe it would be better to add appendCodePoint(int cp) to Charsequence,
>>> of something similar.

You only get one chance to get an interface right, unfortunately.

Martin