git: openjdk/loom: fibers: fix JVMTI GetObjectMonitorUsage to return vthread as owner for vthreads on JavaThread stack

[duke]

Changeset: 2517af28
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2021-09-28 06:20:05 +0000
URL:       https://git.openjdk.java.net/loom/commit/2517af2860da64dfb9fe56df1f395ff99e890118

fix JVMTI GetObjectMonitorUsage to return vthread as owner for vthreads on JavaThread stack

! src/hotspot/share/prims/jvmtiEnvBase.cpp
! test/hotspot/jtreg/ProblemList-vthread.txt