RFR: JDK-8234689 facilitate writing additional custom attributes in a class file

[Jan Lahoda]

Overall looks OK to me. Not sure if it would make sense to keep the 
existing method? The test will need tweaks for @bug and @summary.

Jan

On 06. 12. 19 3:23, Jonathan Gibbons wrote:
> Please review a small change to javac to permit friendly clients to 
> inject additional attributes into a class file.
> 
> This supersedes and generalizes an existing mechanism which is 
> difficult/impractical to use, especially
> in current versions of javac where split packages are strongly discouraged.
> 
> -- Jon
> 
> JBS: https://bugs.openjdk.java.net/browse/JDK-8234689
> Webrev: http://cr.openjdk.java.net/~jjg/8234689/webrev.00/
>