Imported Upstream version 5.10.0.47

Former-commit-id: d0813289fa2d35e1f8ed77530acb4fb1df441bc0

mcs/errors/cs8175.cs

@@ -0,0 +1,17 @@
+// CS8175: Cannot use by-reference variable `v' inside an anonymous method, lambda expression, or query expression
+// Line: 14
+
+using System;
+
+public class Test
+{
+	public static void Main()
+	{
+		var arr = new int [1];
+		ref var v = ref arr [0];
+
+		Action a = delegate {
+			ref var v2 = ref v;
+		};
+	}
+}