libgo: Update to October 24 version of master library.

From-SVN: r204466

1 files changed, 8 insertions, 1 deletions

diff --git a/libgo/go/net/iprawsock.go b/libgo/go/net/iprawsock.go
index 0be94eb70eb..5cc361390ff 100644
--- a/libgo/go/net/iprawsock.go
+++ b/libgo/go/net/iprawsock.go
@@ -23,6 +23,13 @@ func (a *IPAddr) String() string {
 	return a.IP.String()
 }
 
+func (a *IPAddr) toAddr() Addr {
+	if a == nil {
+		return nil
+	}
+	return a
+}
+
 // ResolveIPAddr parses addr as an IP address of the form "host" or
 // "ipv6-host%zone" and resolves the domain name on the network net,
 // which must be "ip", "ip4" or "ip6".
@@ -43,5 +50,5 @@ func ResolveIPAddr(net, addr string) (*IPAddr, error) {
 	if err != nil {
 		return nil, err
 	}
-	return a.(*IPAddr), nil
+	return a.toAddr().(*IPAddr), nil
 }