Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/test-864.cs

@@ -0,0 +1,57 @@
+class MainClass
+{
+	static int Foo (double d)
+	{
+		return 0;
+	}
+
+	static int Foo (int d)
+	{
+		return 100;
+	}
+
+	public static int Main ()
+	{
+		decimal a = new A ();
+		long b = new B ();
+		if (b != 7)
+			return 1;
+		
+		if (Foo (new B2 ()) != 100)
+			return 1;
+
+		return 0;
+	}
+}
+
+public class A
+{
+	public static implicit operator int (A a)
+	{
+		return 6;
+	}
+}
+
+public class B : A
+{
+	public static implicit operator int (B b)
+	{
+		return 7;
+	}
+}
+
+public class A2
+{
+	public static implicit operator double (A2 a)
+	{
+		return 2;
+	}
+}
+
+public class B2 : A2
+{
+	public static implicit operator int (B2 b)
+	{
+		return 3;
+	}
+}