tree 7717d5010f105e8711f0236d38b01a4965017d41
parent a5ca0ca8860ac99eaa2ad7c959fd4e04d331153e
author Joachim Sauer <jsauer@google.com> 1462889348 +0100
committer Joachim Sauer <jsauer@google.com> 1462972784 +0100

Fix AbstractStringBuilder gaining extra APIs.

AbstractStringBuilder showed up in the API as gaining methods originally
belonging to StringBuffer/StringBuilder (mostly append(*) and
insert(*)).

Ideally it should not be in the API at all, but it's traditionally been
there and we'll keep it for now.

@hide the affected methods and move the "implements Appendable"
definition to StringBuffer/StringBuilder (as methods implementing an
interface can't be @hidden).

(cherry picked from commit 91f4aec3ccb4b2a2b66fbde095baa584b0862c11)

Bug: 27582395
Change-Id: I0b85c2c84f3e52ffe7864728d083f9c6ea7304ef