hg: jdk/sandbox: 7006496: Use modern Windows API to retrieve OS DNS servers

[chris.hegarty at oracle.com]

Changeset: 559fcd53e782
Author:    aefimov
Date:      2020-01-24 16:16 +0000
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/559fcd53e782

7006496: Use modern Windows API to retrieve OS DNS servers
Reviewed-by: dfuchs, chegar, aefimov
Contributed-by: Anuraag Agrawal <anuraaga at gmail.com>

! src/java.base/windows/classes/sun/net/dns/ResolverConfigurationImpl.java
! src/java.base/windows/native/libnet/NetworkInterface_winXP.c
! src/java.base/windows/native/libnet/ResolverConfigurationImpl.c