A way to access the Unicode version and the Unicode emoji version

[eregon]

MRI reports both of these as RbConfig::CONFIG['UNICODE_VERSION'] and RbConfig::CONFIG['UNICODE_EMOJI_VERSION'].
Is there a way to get those values from JCodings? I could not find one.

Maybe we could expose the version from scripts/generate.rb or the last age from 549d631#diff-f7b7fcd9408309a7a3e666c1cc8c91b0 ?

[lopex]

yeah, so it should go to UnicodeProperties, any preference wrt the name ?

[eregon]

I would use the same as MRI, so UNICODE_VERSION and UNICODE_EMOJI_VERSION

[headius]

Relates to jruby/jruby#5576 and would fix two specs.

[headius]

I have hardcoded these in JRuby for now.

[eregon]

Thanks!
As long as they're kept up-to-date with the version of Unicode JCodings implements this sounds a good approach.