hg: jdk10/hs/hotspot: 8183229: Implement WindowsSemaphore::trywait

[mikael.gerdin at oracle.com]

Changeset: 28e384fe79fd
Author:    mgerdin
Date:      2017-06-30 10:36 +0200
URL:       http://hg.openjdk.java.net/jdk10/hs/hotspot/rev/28e384fe79fd

8183229: Implement WindowsSemaphore::trywait
Reviewed-by: redestad, stefank, kbarrett

! src/os/windows/vm/os_windows.cpp
! src/os/windows/vm/semaphore_windows.hpp
! src/share/vm/runtime/semaphore.hpp
! test/native/runtime/test_semaphore.cpp