Imported Upstream version 3.8.0

Former-commit-id: 6a76a29bd07d86e57c6c8da45c65ed5447d38a61

mcs/errors/cs0837-4.cs

@@ -0,0 +1,13 @@
+// CS0837: The `is' operator cannot be applied to a lambda expression, anonymous method, or method group
+// Line: 11
+
+using System;
+using System.Linq.Expressions;
+
+class C
+{
+	public static void Main ()
+	{
+		Expression<Func<bool>> e = () => "1".ToString is string;
+	}
+}