hg: loom/loom: Work around miscounted frames_count parameter in cont yield events; Update ContinuationTest with one more case

[serguei.spitsyn at oracle.com]

Changeset: 283cecb991fa
Author:    sspitsyn
Date:      2019-04-17 11:30 -0700
URL:       http://hg.openjdk.java.net/loom/loom/rev/283cecb991fa

Work around miscounted frames_count parameter in cont yield events; Update ContinuationTest with one more case

! src/hotspot/share/prims/jvmtiExport.cpp
! test/hotspot/jtreg/serviceability/jvmti/ContinuationTest/MyPackage/ContinuationTest.java
! test/hotspot/jtreg/serviceability/jvmti/ContinuationTest/libContinuationTest.cpp