git: openjdk/loom: fibers: Further merge of changes from jdk-14+22

[duke]

Changeset: d84f6700
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2019-11-11 10:18:24 +0000
URL:       https://git.openjdk.java.net/loom/commit/d84f6700

Further merge of changes from jdk-14+22

! src/java.base/share/classes/java/lang/Fiber.java
! src/java.base/share/classes/java/lang/Thread.java
! src/java.base/share/classes/sun/nio/ch/DatagramChannelImpl.java
! src/java.base/share/classes/sun/nio/ch/ServerSocketChannelImpl.java
! src/java.base/share/classes/sun/nio/ch/SocketChannelImpl.java
! src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/meta/HotSpotGraphBuilderPlugins.java
! test/jdk/java/lang/Thread/lightweight/ThreadAPI.java