### 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)

for (; line_col < cc; line_col++) {
				char32_t c = line[line_col];
				if (auto_indent_prefixes.has(c)) {
					should_indent = true;
					indent_char = c;
					continue;
				}
				
				
				if (should_indent && (!is_whitespace(c) && is_in_comment(cl, line_col + 1) == -1)) {
					should_indent = false;
				}
			}
			if (should_indent) {
				ins += indent_text;
				String closing_pair = get_auto_brace_completion_close_key(String::chr(indent_char));
				if (!closing_pair.is_empty() && line.find(closing_pair, cc) == cc) {
					
					if (p_split_current_line) {
						brace_indent = true;
						ins += "\n" + ins.substr(indent_text.size(), ins.length() - 2);
					} else {
						brace_indent = false;
						ins = "\n" + ins.substr(indent_text.size(), ins.length() - 2);
					}
				}
			}
		}
		bool first_line = false;
		if (!p_split_current_line) {