[TCPIP]
- Fix a bug IRPFinish(): do not touch the IRP if there's a pending return. Thanks to Thomas for his help!
- Implement DispTdiQueryIpHwAddress(): the current implementation is not optimal, but works. It first reset the ARP table entry corresponding the to target host, if it exists. Then, it sends the ARP probe and wait till the ARP table is updated to return the HW link address.
Could be improved, but it would require more important work in the driver, which is not a good solution when we're to release ;-).
Obviously, this fixes arping not working in ReactOS: https://twitter.com/HeisSpiter/status/
673088515647930368
And this fixes a few iphlpapi_apitest tests.
svn path=/trunk/; revision=70269