RFR(XS): 8210925 : move bytecode testlibrary to top-level testlibrary

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev//8210925/webrev.00/index.html
> 14 lines changed: 0 ins; 0 del; 14 mod;

Hi all,

could you please review this small and trivial patch which moves bytecode testlibrary to top-level testlibrary directory?

webrev: http://cr.openjdk.java.net/~iignatyev//8210925/webrev.00/index.html
JBS: https://bugs.openjdk.java.net/browse/JDK-8210925
testing: java/lang/invoke/condy tests

Thanks,
-- Igor