Imported Upstream version 5.4.0.167

Former-commit-id: 5624ac747d633e885131e8349322922b6a59baaa

mcs/errors/cs0162-21.cs

@@ -0,0 +1,19 @@
+// CS0162: Unreachable code detected
+// Line: 12
+// Compiler options: -warnaserror -warn:2
+
+using System;
+
+class X
+{
+    void Test ()
+    {
+        var x = true ? throw new NullReferenceException () : 1;
+        x = 2;
+        return;
+    }
+
+	static void Main () 
+	{
+	}
+}