git: openjdk/loom: fibers: 2 new changesets

[duke]

Changeset: 75ecbd42
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2023-12-14 15:18:12 +0000
URL:       https://git.openjdk.org/loom/commit/75ecbd428b0c1e8814eb523681f66a419a1efb46

More tests for native synchronized and JNI MonitorEnter

+ test/jdk/java/lang/Thread/virtual/MonitorsAndJNI.java
+ test/jdk/java/lang/Thread/virtual/libMonitorsAndJNI.c

Changeset: 94e8da34
Author:    Alan Bateman <alan.bateman at oracle.com>
Date:      2023-12-14 15:23:48 +0000
URL:       https://git.openjdk.org/loom/commit/94e8da34e00667225bab6da7e197db482b486161

JDK-8321594 import from main line

! src/java.base/share/classes/sun/nio/ch/NativeThreadSet.java