RFR(XXS) : 8059732 : improve hotspot_*test targets

[Igor Ignatyev]

webrev: http://cr.openjdk.java.net/~iignatyev/8059732/webrev.00/
33 lines changed: 20 ins; 9 del; 4 mod;

Hi all,

Please review changes in hotspot_*test targets:
  - common part is extracted as sanitytest target
  - flags to test are stored in TEST_FLAGS variable
  - tests fail if one of executions fail (not the last one, as it was 
before)

jbs: https://bugs.openjdk.java.net/browse/JDK-8059732
testing: jprt

-- 
Thanks
Igor