[mcs] Add more of undocumented C#6 improved overload resolution

1 files changed, 74 insertions, 0 deletions

diff --git a/mcs/tests/test-935.cs b/mcs/tests/test-935.cs
new file mode 100644
index 00000000000..c47d89dc628
--- /dev/null
+++ b/mcs/tests/test-935.cs
@@ -0,0 +1,74 @@
+using System;
+using System.Threading.Tasks;
+using System.Linq.Expressions;
+
+public static class Program
+{
+	public delegate void DelegateVoid (int arg);
+	public delegate int DelegateInt (string arg);
+
+	public static int Main () 
+	{ 
+		Foo (Bar);
+
+		TT (null);
+		NN (0);
+		NN2 (1);
+		Complex (null);
+		return 0;
+	}
+
+	static void TT (Task<string> a)
+	{
+	}
+
+	static void TT (Task<object> b)
+	{
+		throw new ApplicationException ("wrong overload");
+	}
+
+	static void NN (sbyte a)
+	{
+	}
+
+	static void NN (uint? b)
+	{
+		throw new ApplicationException ("wrong overload");
+	}
+
+	static void NN2 (sbyte? a)
+	{
+	}
+
+	static void NN2 (uint? b)
+	{
+		throw new ApplicationException ("wrong overload");
+	}
+
+	public static void Bar (int arg) 
+	{
+	}
+
+	public static int Bar (string arg)
+	{ 
+		return  2;
+	}
+
+	public static void Foo (DelegateVoid input)
+	{
+		throw new ApplicationException ("wrong overload");
+	}
+
+	public static void Foo (DelegateInt input)
+	{
+	}
+
+	static void Complex (Expression<Func<Task<short>>> arg)
+	{
+	}
+
+	static void Complex (Expression<Func<Task<ulong>>> arg)
+	{
+		throw new ApplicationException ("wrong overload");
+	}
+}
\ No newline at end of file