RFR : 8023452 : TestCase$Helper(java.lang.Object) must be osr_compiled

[Igor Ignatyev]

Hi all,

Please review patch.

Problem:
- osr test cases in some 'compiler/whiteobx' tests are not applicable in 
-Xcomp mode, since there is no way to provoke osr compilation.
- 'EnqueueMethodForCompilationTest' fails in osr test cases, due to 
triggering regular compilation

Fix:
- added skipping of osr test cases, if -Xcomp is enabled
- added clearing of method's state in 'EnqueueMethodForCompilationTest'

webrev: http://cr.openjdk.java.net/~iignatyev/8023452/webrev.00/
jbs: https://bugs.openjdk.java.net/browse/JDK-8023318
testing: jprt:compiler/whitebox + locally w/ the same flags as in 
original failure
-- 
Best regards,
Igor Ignatyev