Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/errors/cs0034.cs

@@ -0,0 +1,38 @@
+// CS0034: Operator `!=' is ambiguous on operands of type `Program.A' and `Program.B'
+// Line: 36
+
+using System;
+
+class Program
+{
+	public class A
+	{
+		public static implicit operator string (A c)
+		{
+			return null;
+		}
+		
+		public static implicit operator Delegate (A c)
+		{
+			return null;
+		}
+	}
+	
+	public class B
+	{
+		public static implicit operator string (B c)
+		{
+			return null;
+		}
+		
+		public static implicit operator Delegate (B c)
+		{
+			return null;
+		}
+	}
+
+	public static void Main (string [] args)
+	{
+		bool b = new A () != new B ();
+	}
+}