1 files changed, 20 insertions, 0 deletions
diff --git a/mcs/errors/cs1503-15.cs b/mcs/errors/cs1503-15.cs
new file mode 100644
index 0000000000..4313fcf2c8
--- /dev/null
+++ b/mcs/errors/cs1503-15.cs
@@ -0,0 +1,20 @@
+// CS1503: Argument `#2' cannot convert `IFoo<object>' expression to type `IFoo<int>'
+// Line: 18
+
+interface IFoo<in T>
+{
+}
+
+class C
+{
+	public static void Foo<T> (IFoo<T> e1, IFoo<T> e2)
+	{
+	}
+	
+	public static void Main ()
+	{
+		IFoo<int> a = null;
+		IFoo<object> b = null;
+		Foo (a, b);
+	}
+}