[Java.Interop-Tests] Fix JniPeerMembers construction.

Oops; the JniPeerMembers managedPeerType is supposed to be the
declaring type -- the type that has the JniPeerMembers instance.

In this case that wasn't true -- CallNonvirtualDerived was using
CallNonvirtualBase as the managedPeerType. Doh!

(I wonder if there's a way to check/assert for this...)

Author: jonpryor

src/Java.Interop/Tests/Java.Interop/CallNonvirtualDerived.cs

@@ -9,7 +9,7 @@ public class CallNonvirtualDerived : CallNonvirtualBase
 	{
 		internal new const string JniTypeName = "com/xamarin/interop/CallNonvirtualDerived";
 
-		readonly static JniPeerMembers _members = new JniPeerMembers (JniTypeName, typeof (CallNonvirtualBase));
+		readonly static JniPeerMembers _members = new JniPeerMembers (JniTypeName, typeof (CallNonvirtualDerived));
 
 		public override JniPeerMembers JniPeerMembers {
 			get {return _members;}