Imported Upstream version 5.10.0.47

Former-commit-id: d0813289fa2d35e1f8ed77530acb4fb1df441bc0

mcs/errors/cs0029-40.cs

@@ -0,0 +1,19 @@
+// CS0029: Cannot implicitly convert type `S' to `System.ValueType'
+// Line: 16
+// Compiler options: -langversion:latest
+
+using System;
+
+public ref struct S
+{
+}
+
+class Test
+{
+	public static void Main ()
+	{
+		var s = default (S);
+		ValueType s2 = s;
+		var res = default (S).ToString ();
+	}
+}