RFR 8218167: nsk/jvmti/scenarios/sampling/SP02/sp02t003 fails

[Daniil Titov]

Please review the change that fix intermittent failure for test nsk/jvmti/scenarios/sampling/SP02/sp02t003 when running with Graal.

The problem with the test here is that method checkThread() looks for the test method in the top "commonDepth" frames where "commonDepth" is a minimum of "frameCount" (returned by jvmti->GetFrameCount) and "frameStackSize"( returned by jvmti->GetStackTrace).

If a compilation is triggered between these 2 calls then there are cases when "frameCount"  is 2,  "frameStackSize" is 4,  and the frame stack is as the following:

[0] adjustCompilationLevel
[1] adjustCompilationLevel
[2] testedMethod
[3] run

In this case the test looks for the test method only in 2 top frames and fails.

The fix ensures that the test iterates over all frames in the frame stack when looking for the test method. 

Webrev: http://cr.openjdk.java.net/~dtitov/8218167/webrev.01 
Bug: https://bugs.openjdk.java.net/browse/JDK-8218167

Thanks!
--Daniil