### Godot version

4.1.1.stable.official

### System information

Godot v4.1.1.stable - Windows 10.0.19045 - Vulkan (Compatibility) - Intel(R) HD Graphics 4600 (Intel Corporation; 20.19.15.5126) - Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz (8 Threads)

### Issue description

So theres this error message:
Expected error after ">" operator."
there appears to be a useless " at the end. Is this intentional?
![image](https://github.com/godotengine/godot/assets/95637172/b7763908-596e-47e6-b632-bd5ceceab9db)


### Steps to reproduce

attach a script and write a ternary operator line, But do after the operator do not write the other piece of code.
var test = 1 if a > # leave it out so it gives an debug error message at edit time
you'll see the debug error message

### Minimal reproduction project

go to scenes\enemys\frog\frog.gd
youll see line 24 which includes the bug
[test.zip](https://github.com/godotengine/godot/files/12328367/test.zip)

String line = p_line;
	if (r_state == DOC_LINE_NORMAL) {
		line = line.strip_edges(true, false);
	} else {
		line = line.trim_prefix(p_space_prefix);
	}
	String line_join;
	if (!p_text.is_empty()) {
		if (r_state == DOC_LINE_NORMAL) {
			if (p_text.ends_with("[/codeblock]")) {
				line_join = "\n";
			} else if (!p_text.ends_with("[br]")) {
				line_join = " ";
			}
		} else {
			line_join = "\n";
		}
	}
	String result;
	int from = 0;
	int buffer_start = 0;
	const int len = line.length();
	bool process = true;
	while (process) {
		switch (r_state) {
			case DOC_LINE_NORMAL: {
				int lb_pos = line.find_char('[', from);
				if (lb_pos < 0) {
					process = false;