### Godot version

4.0-stable_mono_win64

### System information

Windows 11 22H2

### Issue description

> 
![Script](https://user-images.githubusercontent.com/43518523/224719220-9ab4a56c-2e9c-4c1b-bebe-d62eb23e372b.png)
![Bug](https://user-images.githubusercontent.com/43518523/224719256-34436394-6d89-4a2e-a588-f9f11ae06ea1.png)
Expected: The parameter type of OnChildEnteredTree (underlined) in the dialog is Node, not Object.

### Steps to reproduce

1. Write a public (signal listener) C# function with a Node parameter.
2. Build .NET project.
3. Try to connect some suitable signal (e.g. "child_entered_tree") to that function, and it won't appear in the Pick dialog if `Compatible Methods Only` is on.

### Minimal reproduction project

[SignalParamBug.zip](https://github.com/godotengine/godot/files/10958019/SignalParamBug.zip)

GDMonoCache::godotsharp_property_def_val_pair *def_vals = (GDMonoCache::godotsharp_property_def_val_pair *)p_def_vals;
	for (int i = 0; i < p_count; i++) {
		const GDMonoCache::godotsharp_property_def_val_pair &def_val_pair = def_vals[i];
		StringName name = *reinterpret_cast<const StringName *>(&def_val_pair.name);
		Variant value = *reinterpret_cast<const Variant *>(&def_val_pair.value);
		p_script->exported_members_defval_cache[name] = value;
	}
}
#endif
bool CSharpScript::_update_exports(PlaceHolderScriptInstance *p_instance_to_update) {