Support py list conversion to IReadOnlyList (#100)

Author: jhonabreul

src/embed_tests/TestConverter.cs

@@ -78,6 +78,21 @@ public void ReadOnlyCollection()
             Assert.AreEqual(typeof(int), ((IReadOnlyCollection<Type>) result).ToList()[1]);
         }
 
+        [Test]
+        public void ReadOnlyList()
+        {
+            var array = new List<Type> { typeof(decimal), typeof(int) };
+            var py = array.ToPython();
+            object result;
+            var converted = Converter.ToManaged(py, typeof(IReadOnlyList<Type>), out result, false);
+
+            Assert.IsTrue(converted);
+            Assert.AreEqual(typeof(List<Type>), result.GetType());
+            Assert.AreEqual(2, ((IReadOnlyList<Type>)result).Count);
+            Assert.AreEqual(typeof(decimal), ((IReadOnlyList<Type>)result).ToList()[0]);
+            Assert.AreEqual(typeof(int), ((IReadOnlyList<Type>)result).ToList()[1]);
+        }
+
         [Test]
         public void ConvertPyListToArray()
         {

src/runtime/Converter.cs

@@ -421,7 +421,8 @@ internal static bool ToManagedValue(BorrowedReference value, Type obType,
                 if (typeDefinition == typeof(List<>)
                     || typeDefinition == typeof(IList<>)
                     || typeDefinition == typeof(IEnumerable<>)
-                    || typeDefinition == typeof(IReadOnlyCollection<>))
+                    || typeDefinition == typeof(IReadOnlyCollection<>)
+                    || typeDefinition == typeof(IReadOnlyList<>))
                 {
                     return ToList(value, obType, out result, setError);
                 }