### Godot version

4.2 rc2

### System information

Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1060 (NVIDIA; 30.0.15.1403) - Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz (8 Threads)

### Issue description


https://github.com/godotengine/godot/assets/2223172/2c1829fa-1dd7-4f5b-b04a-f557ace35b5e

You can either see autocompletion or argument list. It's especially annoying when using e.g. `Input.get_vector()` method which has multiple arguments difficult to remember.

### Steps to reproduce

1. Write `Input.get_vector(`
2. Remove `(`
3. Add `(`

### Minimal reproduction project

N/A
break;
			}
			region = E->value();
			in_region = true;
			for (int i = E->key() - 2; i >= 0; i--) {
				if (!is_whitespace(line[i])) {
					return -1;
				}
			}
		}
		if (delimiters[region].line_only) {
			return region;
		}
		int end_col = E->key();
		if (E->value() != -1) {
			if (!E->next()) {
				return region;
			}
			end_col = E->next()->key();
		}
		for (int i = end_col; i < line.length(); i++) {
			if (!is_whitespace(line[i])) {
				return -1;
			}
		}
		return region;
	}
	return in_region ? region : -1;
}
void CodeEdit::_add_delimiter(const String &p_start_key, const String &p_end_key, bool p_line_only, DelimiterType p_type) {