RFR 8080353: JShell: Better error message on attempting to add default method

[Jan Lahoda]

Looks good to me. Maybe it would be useful to add a test where default 
is combined with public? No need for re-review.

Jan

On 18. 05. 19 23:08, Robert Field wrote:
> Please review...
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8080353
> 
> Webrev: http://cr.openjdk.java.net/~rfield/8080353.webrev/
> 
> Thanks,
> Robert
> 
>