### Godot version

v4.0.beta.custom_build [0abd60b95]

### System information

Windows 10, Vulkan

### Issue description

Autocomplete doesn't work when trying to access a scene node that isn't a direct child of the scene root script, using $NodePath (Shorthand for get_node("NodePath") as per docs).

Example:
![image](https://user-images.githubusercontent.com/115422160/212197922-10e73c9f-de10-475e-ac6e-4163fc5b8013.png)

It worked in Godot 3.5:
![3.5](https://user-images.githubusercontent.com/115422160/212197992-61b67a42-86c6-4650-bab4-c7dfa5a67975.PNG)

I should mention that it works if you start by typing the name of a direct child:
![image](https://user-images.githubusercontent.com/115422160/212198641-6d8e6fca-a2d2-47a7-b627-2df95268daf5.png)

But when you have many nodes in the scene and longer names it's a pain to access the last children like that.


### Steps to reproduce

See above or MRP.

### Minimal reproduction project

[autocomplete bug.zip](https://github.com/godotengine/godot/files/10406695/autocomplete.bug.zip)

}
		}
		ignored = ignored && (kind == ScriptLanguage::CODE_COMPLETION_KIND_FILE_PATH || kind == ScriptLanguage::CODE_COMPLETION_KIND_NODE_PATH || kind == ScriptLanguage::CODE_COMPLETION_KIND_SIGNAL);
	}
	if (ignored) {
		return;
	}
	if (p_force) {
		emit_signal(SNAME("code_completion_requested"));
		return;
	}
	String line = get_line(get_caret_line());
	int ofs = CLAMP(get_caret_column(), 0, line.length());
	if (ofs > 0 && (is_in_string(get_caret_line(), ofs) != -1 || !is_symbol(line[ofs - 1]) || code_completion_prefixes.has(line[ofs - 1]))) {
		emit_signal(SNAME("code_completion_requested"));
	} else if (ofs > 1 && line[ofs - 1] == ' ' && code_completion_prefixes.has(line[ofs - 2])) {
		emit_signal(SNAME("code_completion_requested"));
	}
}
void CodeEdit::add_code_completion_option(CodeCompletionKind p_type, const String &p_display_text, const String &p_insert_text, const Color &p_text_color, const Ref<Resource> &p_icon, const Variant &p_value) {
	ScriptLanguage::CodeCompletionOption completion_option;
	completion_option.kind = (ScriptLanguage::CodeCompletionKind)p_type;
	completion_option.display = p_display_text;
	completion_option.insert_text = p_insert_text;
	completion_option.font_color = p_text_color;
	completion_option.icon = p_icon;
	completion_option.default_value = p_value;
	code_completion_option_submitted.push_back(completion_option);
}
void CodeEdit::update_code_completion_options(bool p_forced) {