### Godot version

4.0 beta 10

### System information

Windows 11

### Issue description

On the text editor when using autocomplete on function arguments that receive Input Map names after autocompleting the function name, the string autocompleted appears with an extra " at the end.
This doesnt happen if you write " and then accept the Input name in the dropdown

### Steps to reproduce

- On the script editor
- Start writing `Input.get_vector` but when the dropdown appears with the autocomplete suggestion for `Input.get_vector` press enter to accept it, then press enter again to accept the Input map suggestion
- The autocompleted input name should have an extra "

### 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) {