### Godot version

4.1.beta3

### System information

Fedora Workstation 38 - Godot 4.1.beta3 - Vulkan (Forward+)

### Issue description

**This is an issue created by the production team, we're working on it**

Currently, it's impossible to call virtual functions within GDScript.

This currently returns an error:
```gdscript
# a.gd
extends Node

func _process(delta: float) -> void:
	pass
```

```gdscript
# main.gd
extends Node

var my_node: Node = preload("res://a.gd").new()

func _process(delta: float) -> void:
	my_node._process(delta)  # Cannot call virtual function "_process()" because it hasn't been defined.
```

### Steps to reproduce

1. Create a script (`a.gd`) based on `Node` that declares `_process()`;
2. Create a main node;
3. Attach a script to the main node;
4. Initialize a variable with a new `a.gd` instance;
5. Try to run `_process()` on that node;
6. Find out that it returns an error.

### Minimal reproduction project

[virtual_functions.zip (updated)](https://github.com/godotengine/godot/files/11823992/virtual_functions.zip)


for (const MethodInfo &info : constructors) {
					if (p_call->arguments.size() < info.arguments.size() - info.default_arguments.size()) {
						continue;
					}
					if (p_call->arguments.size() > info.arguments.size()) {
						continue;
					}
					bool types_match = true;
					for (int i = 0; i < p_call->arguments.size(); i++) {
						GDScriptParser::DataType par_type = type_from_property(info.arguments[i], true);
						if (!is_type_compatible(par_type, p_call->arguments[i]->get_datatype(), true)) {
							types_match = false;
							break;
#ifdef DEBUG_ENABLED
						} else {
							if (par_type.builtin_type == Variant::INT && p_call->arguments[i]->get_datatype().builtin_type == Variant::FLOAT && builtin_type != Variant::INT) {
								parser->push_warning(p_call, GDScriptWarning::NARROWING_CONVERSION, p_call->function_name);
							}
#endif
						}
					}
					if (types_match) {
						for (int i = 0; i < p_call->arguments.size(); i++) {
							if (p_call->arguments[i]->is_constant) {
								update_const_expression_builtin_type(p_call->arguments[i], type_from_property(info.arguments[i], true), "pass");
							}
						}
						match = true;
						call_type = type_from_property(info.return_val);
						break;