RFR(XS) : 8177899 : Tests fail due to code cache exhaustion on machines with many cores

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev//8177899/webrev.00/index.html
> 13 lines changed: 9 ins; 0 del; 4 mod; 

Hi all,

could you please review this small patch which limits number of compiler threads in the tests which set code cache explicitly?

webrev: http://cr.openjdk.java.net/~iignatyev//8177899/webrev.00/index.html
JBS: https://bugs.openjdk.java.net/browse/JDK-8177899
testing: compiler/codecache tests

Thanks,
-- Igor