git: openjdk/loom: fibers: 2 new changesets

[duke]

Changeset: a5bd7e62
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2021-02-20 06:18:05 +0000
URL:       https://git.openjdk.java.net/loom/commit/a5bd7e62

update for JVMTI hidden frames support

! src/hotspot/share/prims/jvmtiEnvBase.cpp
! src/hotspot/share/prims/jvmtiEnvBase.hpp
! src/hotspot/share/prims/jvmtiImpl.cpp
! src/hotspot/share/prims/jvmtiThreadState.cpp
! test/hotspot/jtreg/serviceability/jvmti/vthread/MethodExitTest/libMethodExitTest.cpp

Changeset: aec3a2f7
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2021-02-20 07:58:07 +0000
URL:       https://git.openjdk.java.net/loom/commit/aec3a2f7

add new JVMTI vthread test to cover breakpoints at yield points

+ test/hotspot/jtreg/serviceability/jvmti/vthread/BreakpointInYieldTest/BreakpointInYieldTest.java
+ test/hotspot/jtreg/serviceability/jvmti/vthread/BreakpointInYieldTest/libBreakpointInYieldTest.cpp