git: openjdk/loom: fibers: to avoid deadlocks ignore JVMTI events if JavaThread is in VTMT

[duke]

Changeset: c881822f
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2021-03-25 12:48:15 +0000
URL:       https://git.openjdk.java.net/loom/commit/c881822f

to avoid deadlocks ignore JVMTI events if JavaThread is in VTMT

! src/hotspot/share/prims/jvmtiExport.cpp
! src/hotspot/share/prims/jvmtiThreadState.cpp