RFR(XS) : 8164546 : Convert DirectivesParser_test to GTest

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev//8164546/webrev.00/index.html
> 384 lines changed: 214 ins; 167 del; 3 mod

Hi all,

could you please review this small patch which converts DirectivesParser_test to GTest?

webrev: http://cr.openjdk.java.net/~iignatyev//8164546/webrev.00/index.html
JBS: https://bugs.openjdk.java.net/browse/JDK-8164546

PS the patch has been originally created by Pavel P.

Thanks,
-- Igor