Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/errors/cs0034-2.cs

@@ -0,0 +1,21 @@
+// CS0034: Operator `+' is ambiguous on operands of type `A' and `A'
+// Line: 22
+
+public class A {
+	public static implicit operator int (A a)
+	{
+		return 0;
+	}
+
+	public static implicit operator string (A a)
+	{
+		return "a";
+	}
+
+	public static void Main ()
+	{
+		A a = new A ();
+		object o = a + a;
+		System.Console.WriteLine (o);
+	}
+}