Make similarly named files in tests and qhelp in sync

Author: edvraa

csharp/ql/src/Security Features/CWE-502/UnsafeDeserializationUntrustedInputGood.cs

@@ -6,7 +6,7 @@ class Good
     public static object Deserialize(TextBox textBox)
     {
         JavaScriptSerializer sr = new JavaScriptSerializer();
-        // GOOD
+        // GOOD: no unsafe type resolver
         return sr.DeserializeObject(textBox.Text);
     }
 }

csharp/ql/test/query-tests/Security Features/CWE-502/UnsafeDeserializationUntrustedInput/UnsafeDeserializationUntrustedInputGood.cs

@@ -5,8 +5,8 @@ class Good
 {
     public static object Deserialize(TextBox textBox)
     {
-        JavaScriptSerializer sr = new JavaScriptSerializer(new SimpleTypeResolver());
-        // GOOD
-        return sr.DeserializeObject("hardcoded");
+        JavaScriptSerializer sr = new JavaScriptSerializer();
+        // GOOD: no unsafe type resolver
+        return sr.DeserializeObject(textBox.Text);
     }
 }