git: openjdk/loom: fibers: 1. Update spec of JVMTI functions not supporting vthreads; 2. Add vthread support to InterruptThread

[duke]

Changeset: eca68e8f
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2021-05-28 09:16:28 +0000
URL:       https://git.openjdk.java.net/loom/commit/eca68e8fd11a184be91f7eabb815cc8c3c3165de

1. Update spec of JVMTI functions not supporting vthreads; 2. Add vthread support to InterruptThread

! src/hotspot/share/classfile/vmSymbols.hpp
! src/hotspot/share/prims/jvmti.xml
! src/hotspot/share/prims/jvmtiEnv.cpp
! test/hotspot/jtreg/serviceability/jvmti/vthread/VThreadUnsupportedTest/VThreadUnsupportedTest.java
! test/hotspot/jtreg/serviceability/jvmti/vthread/VThreadUnsupportedTest/libVThreadUnsupportedTest.cpp
! test/lib/jdk/test/lib/jvmti/jvmti_common.h