WPO Whole Program Optimization DEVIRTCALLS optimization - generate program that not working correctly
## Summary
Using WPO DEVIRTCALLS optimization - generate program not working correctly
## System Information
<!-- The more information are provided the easier it is to replicate the bug -->
- **Operating system:** Windows 11 x64 / Ubuntu 22.04 LTS x64
- **Processor architecture:** x86-64, Intel
- **Compiler version:** On Windows: 3.2.2, trunk, On Linux: 3.2.2
- **Device:** Computer
## Steps to reproduce
1. Compile fpc.exe -OWDEVIRTCALLS -FWwpo.wpo demo_project.pas
2. Run demo_project.exe -> you see output "Hello world!"
3. Then compile fpc.exe -OwDEVIRTCALLS -Fwwpo.wpo demo_project.pas
4. Run demo_project.exe-> you see **blank line**! **(but must see "Hello world!"**)
## Example Project
**demo_project.pas**
```
program demo_project;
uses DOM;
var
doc: TXMLDocument;
el: TDOMElement;
begin
doc := TXMLDocument.Create;
el := doc.CreateElement('Node');
el.SetAttribute('Attribute', 'Hello world!');
WriteLn(el.Attributes[0].NodeValue);
doc.Free;
ReadLn;
end.
```
## What is the current bug behavior?
Output blank line
## What is the expected (correct) behavior?
Output "Hello world!"
issue