git: openjdk/loom: fibers: Rework debug agent command line flags for better control of how the debugger learns about threads.

[duke]

Changeset: a9b7b051
Author:    Chris Plummer <chris.plummer at oracle.com>
Date:      2021-03-12 02:41:31 +0000
URL:       https://git.openjdk.java.net/loom/commit/a9b7b051

Rework debug agent command line flags for better control of how the debugger learns about threads.

! src/jdk.jdwp.agent/share/native/libjdwp/debugInit.c
! src/jdk.jdwp.agent/share/native/libjdwp/eventHandler.c
! src/jdk.jdwp.agent/share/native/libjdwp/threadControl.c
! src/jdk.jdwp.agent/share/native/libjdwp/util.h