### Godot version

4.0 Beta 11 to 13

### System information

Windows 10

### Issue description

When trying to upgrade from Beta 10 one of my projects would immediately crash when opening the editor, with no error in the console which also crashed. I managed to isolate it to this enum:

```
enum { # Directions, clockwise, powers of 100, each direction gets 2 digits, allowing 100 terrains
	CENTER = 01,
	NORTH = 0100, # -Z
	NORTH_EAST = 010000,
	EAST = 01000000, # +X
	SOUTH_EAST = 0100000000,
	SOUTH = 010000000000, # +Z
	SOUTH_WEST = 01000000000000,
	WEST = 0100000000000000, # -X
	NORTH_WEST = 010000000000000000,
	ALL = 010101010101010101,
	ALL_CORNERS = NORTH_EAST + SOUTH_EAST + SOUTH_WEST + NORTH_WEST,
}
```

With this last line causing the crash:
`ALL_CORNERS = NORTH_EAST + SOUTH_EAST + SOUTH_WEST + NORTH_WEST,`

This worked in all the betas I've used up to and including Beta 10


### Steps to reproduce

Copy and paste that enum into a script, and save. Simply having a script with this enum will cause the editor to crash, the script doesn't need to be used anywhere.

### Minimal reproduction project

N/A
}
	GDScriptParser::ClassNode *base_class = p_base_type.class_type;
	GDScriptParser::FunctionNode *found_function = nullptr;
	while (found_function == nullptr && base_class != nullptr) {
		if (base_class->has_member(function_name)) {
			if (base_class->get_member(function_name).type != GDScriptParser::ClassNode::Member::FUNCTION) {
				
				push_error(vformat(R"(Member "%s" is not a function.)", function_name), p_source);
				return false;
			}
			resolve_class_member(base_class, function_name, p_source);
			found_function = base_class->get_member(function_name).function;
		}
		resolve_class_inheritance(base_class, p_source);
		base_class = base_class->base_type.class_type;
	}
	if (found_function != nullptr) {
		r_static = p_is_constructor || found_function->is_static;
		for (int i = 0; i < found_function->parameters.size(); i++) {
			r_par_types.push_back(found_function->parameters[i]->get_datatype());
			if (found_function->parameters[i]->initializer != nullptr) {
				r_default_arg_count++;
			}
		}
		r_return_type = p_is_constructor ? p_base_type : found_function->get_datatype();
		r_return_type.is_meta_type = false;
		r_return_type.is_coroutine = found_function->is_coroutine;
		return true;
	}
	Ref<Script> base_script = p_base_type.script_type;