hg: jdk/sandbox: 8201510: Merge TwoStacksPlainSocketImpl into DualStackPlainSocketImpl [win]

[chris.hegarty at oracle.com]

Changeset: 06a6ae39d892
Author:    igerasim
Date:      2018-04-19 09:36 -0700
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/06a6ae39d892

8201510: Merge TwoStacksPlainSocketImpl into DualStackPlainSocketImpl [win]
Reviewed-by: chegar

! src/java.base/windows/classes/java/net/DualStackPlainSocketImpl.java
! src/java.base/windows/classes/java/net/PlainSocketImpl.java
- src/java.base/windows/classes/java/net/TwoStacksPlainSocketImpl.java
! src/java.base/windows/native/libnet/DualStackPlainSocketImpl.c
- src/java.base/windows/native/libnet/TwoStacksPlainSocketImpl.c
+ test/jdk/java/net/Socket/RejectIPv6.java
! test/jdk/java/net/Socket/setReuseAddress/Basic.java
! test/jdk/java/net/Socket/setReuseAddress/Restart.java