inheritance was wonky, internal props on inherited stuff could not be set

Dapper/SqlMapper.cs

@@ -1428,7 +1428,9 @@ static List<PropInfo> GetSettableProps(Type t)
                   .Select(p => new PropInfo
                   {
                       Name = p.Name,
-                      Setter = p.DeclaringType == t ? p.GetSetMethod(true) : p.DeclaringType.GetProperty(p.Name).GetSetMethod(true),
+                      Setter = p.DeclaringType == t ? 
+                        p.GetSetMethod(true) : 
+                        p.DeclaringType.GetProperty(p.Name, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance).GetSetMethod(true),
                       Type = p.PropertyType
                   })
                   .Where(info => info.Setter != null)

Tests/Tests.cs

@@ -16,6 +16,35 @@ class Tests
     {
         SqlConnection connection = Program.GetOpenConnection();
 
+        public class AbstractInheritance
+        {
+            public abstract class Order
+            {
+                internal int Internal { get; set; }
+                protected int Protected { get; set; }
+                public int Public { get; set; }
+
+                public int ProtectedVal { get { return Protected; } }
+            }
+
+            public class ConcreteOrder : Order
+            {
+                public int Concrete { get; set; }
+            }
+        }
+
+        // http://stackoverflow.com/q/8593871
+        public void TestAbstractInheritance() 
+        {
+            var order = connection.Query<AbstractInheritance.ConcreteOrder>("select 1 Internal,2 Protected,3 [Public],4 Concrete").First();
+
+            order.Internal.IsEqualTo(1);
+            order.ProtectedVal.IsEqualTo(2);
+            order.Public.IsEqualTo(3);
+            order.Concrete.IsEqualTo(4);
+            
+        }
+
 
         public void TestListOfAnsiStrings()
         {