Imported Upstream version 3.12.0

Former-commit-id: cf92446697332992ec36726e78eb8703e1f259d7

mcs/errors/cs8047.cs

@@ -0,0 +1,19 @@
+// CS8047: Declaration expression cannot be used in this context
+// Line: 8
+
+public class C
+{
+	public static void Main ()
+	{
+		dynamic target = 3;
+		var x = new Test (target, out var y);
+	}
+}
+
+class Test
+{
+	public Test (int x, out int y)
+	{
+		y = 0;
+	}
+}