dnSpy debugger erroneously reports the exit code 0 instead of the actual exit code

[riQQ]

dnSpyEx version

6.5.1

Describe the Bug

The dnSpy debugger erroneously reports the exit code 0, even though the actual exit code was different.

I reproduced this bug with 6.5.1 and the latest ci artifacts based on b1fbfbc with the .NET Framework version and the .NET version with dnSpy and debugged application in both x64 and x86.

Visual Studio reports the error code correctly when debugging the test application below.

How To Reproduce

Compile a basic program and debug it with dnSpy.

namespace ReturnNonZeroExitCode
{
    internal class Program
    {
        static int Main(string[] args)
        {
            return 539;
        }
    }
}

Expected Behavior

The exit code is reported correctly

Actual Behavior

The dnSpy debugger erroneously reports the exit code 0

Additional Context

No response