[Bug]: Illegal Java code is transformed

### Describe the bug

When entering illegal Java code, the result is usually transformed to a different (but still illegal) code. However, in some cases it get transformed / deleted.

### Source code you are trying to analyze/transform

```Java
0;
0++;
int a = 0++;
```

### MCVE

```Java
package my.spoon.code;

import spoon.Launcher;
import spoon.support.compiler.VirtualFile;

public class Main {
public static void main(String[] args) {
Launcher launcher = new Launcher();
launcher.addInputResource(new VirtualFile(
"""
package the.pkg.name;

class ClassName {
void methodName() {
0;
0++;
int a = 0++;
}
}
"""
));
System.out.println(launcher.buildModel().getAllTypes());
}
}
```

### Actual output

```Java
0 = the.pkg.name.$missing$; // <- `0;`
// <- `0++;`
int a = 0; // <- `int a = 0++;`
```

### Expected output

```Java
// The same output. Illegal code shouldn't get transformed
0;
0++;
int a = 0++;
```

### Spoon Version

11.2.0

### JVM Version

17

### What operating system are you using?

Windows 10

Start with the Java MCVE in Main, using Launcher, VirtualFile, and buildModel() to reproduce the behavior on Spoon 11.2.0. Trace how the three illegal statements are represented during parsing and model construction, then verify that the resulting output preserves 0;, 0++;, and int a = 0++; without transforming or deleting them.

Written by the indexing model from the issue text.