### 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
for (; from < line_length; from++) {
				if (str[from] == '\\') {
					from++;
					continue;
				}
				break;
			}
			
			bool same_line = false;
			if (in_region == -1) {
				for (int d = 0; d < delimiters.size(); d++) {
					
					int chars_left = line_length - from;
					int start_key_length = delimiters[d].start_key.length();
					int end_key_length = delimiters[d].end_key.length();
					if (chars_left < start_key_length) {
						continue;
					}
					
					bool match = true;
					const char32_t *start_key = delimiters[d].start_key.get_data();
					for (int k = 0; k < start_key_length; k++) {
						if (start_key[k] != str[from + k]) {
							match = false;
							break;
						}
					}
					if (!match) {
						continue;
					}