### 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)

}
				if (str[from] == '\\') {
					from++;
					continue;
				}
				region_end_index = from;
				for (int k = 0; k < end_key_length; k++) {
					if (end_key[k] != str[from + k]) {
						region_end_index = -1;
						break;
					}
				}
				if (region_end_index != -1) {
					break;
				}
			}
			j = from + (end_key_length - 1);
			end_region = (region_end_index == -1) ? in_region : -1;
			if (!same_line || region_end_index != -1) {
				delimiter_cache.write[i][j + 1] = end_region;
			}
			in_region = -1;
		}
		if (i == end_line && current_end_region != end_region) {
			end_line++;
			end_line = MIN(end_line, line_count);
		}
	}
}
int CodeEdit::_is_in_delimiter(int p_line, int p_column, DelimiterType p_type) const {