Imported Upstream version 3.8.0

Former-commit-id: 6a76a29bd07d86e57c6c8da45c65ed5447d38a61

mcs/tests/gtest-optional-32.cs

@@ -0,0 +1,23 @@
+using System;
+
+abstract class A
+{
+	public abstract int[] Foo (params int[] args);
+}
+
+class B : A
+{
+	public override int[] Foo (int[] args = null)
+	{
+		return args;
+	}
+
+	static int Main ()
+	{
+		var b = new B();
+		if (b.Foo().Length != 0)
+			return 1;
+
+		return 0;
+	}
+}