Imported Upstream version 3.8.0

Former-commit-id: 6a76a29bd07d86e57c6c8da45c65ed5447d38a61

mcs/tests/test-902.cs

@@ -0,0 +1,24 @@
+abstract class A
+{
+	public virtual void M (params B[] b)
+	{
+	}
+}
+
+class B : A
+{
+	public override void M (B[] b2)
+	{
+	}
+}
+
+class Test2
+{
+	public static void Main()
+	{
+		B b = new B();
+		A a = b;
+		a.M (b, b);
+		b.M (b, b, b);
+	}
+}