RFR: 8231717: Improve performance of EBCDIC charset decoding for COMPACT_STRINGS

[Claes Redestad]

On 2019-10-04 21:55, Roger Riggs wrote:
> Can you change the name to LATIN1COMPATIBLE?
> Its similar to the ASCIICOMPATIBLE case and tied in to the Latin1 coding 
> for used in StringCoding.

To me, compatible has a specific meaning that's not really the case
here. Perhaps isLatin1Decodable/LATIN1DECODABLE would roll better of the
tongue? This would also align nicely with the decodeToLatin1 method.

Patch looks good to me as-is, though.

Thanks!

/Claes