### 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)

}
	
	
	bool single_quote = in_string != -1 && first_quote_col > 0 && delimiters[in_string].start_key == "'";
	code_completion_options.clear();
	code_completion_base = string_to_complete;
	Vector<ScriptLanguage::CodeCompletionOption> completion_options_casei;
	Vector<ScriptLanguage::CodeCompletionOption> completion_options_substr;
	Vector<ScriptLanguage::CodeCompletionOption> completion_options_substr_casei;
	Vector<ScriptLanguage::CodeCompletionOption> completion_options_subseq;
	Vector<ScriptLanguage::CodeCompletionOption> completion_options_subseq_casei;
	int max_width = 0;
	String string_to_complete_lower = string_to_complete.to_lower();
	for (ScriptLanguage::CodeCompletionOption &option : code_completion_option_sources) {
		if (single_quote && option.display.is_quoted()) {
			option.display = option.display.unquote().quote("'");
		}
		int offset = 0;
		if (option.default_value.get_type() == Variant::COLOR) {
			offset = line_height;
		}
		if (in_string != -1) {
			String quote = single_quote ? "'" : "\"";
			option.display = option.display.unquote().quote(quote);
			option.insert_text = option.insert_text.unquote().quote(quote);
		}
		if (option.display.length() == 0) {
			continue;
		}
		if (string_to_complete.length() == 0) {