### 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
const int text_size = get_line_count();
	StringBuilder result;
	for (int i = 0; i < text_size; i++) {
		String line_text = get_line(i);
		if (i == p_line && p_column >= 0 && p_column <= line_text.size()) {
			result += line_text.substr(0, p_column);
			
			result += String::chr(0xFFFF);
			result += line_text.substr(p_column, line_text.size());
		} else {
			result += line_text;
		}
		if (i != text_size - 1) {
			result += "\n";
		}
	}
	return result.as_string();
}
void CodeEdit::set_symbol_lookup_word_as_valid(bool p_valid) {
	symbol_lookup_word = p_valid ? symbol_lookup_new_word : "";
	symbol_lookup_new_word = "";
	if (lookup_symbol_word != symbol_lookup_word) {
		_set_symbol_lookup_word(symbol_lookup_word);
	}
}
void CodeEdit::duplicate_lines() {