### Tested versions

- Reproducible in: 4.2.1 Stable
- Testing working functionality in: 4.2 Stable and 4.1 Stable

### System information

Windows 11 - Godot v4.2.1-stable - Vulkan (Forward+)

### Issue description

I have a timer as shown in the attached image. When I tried to drag the timer to the script and use the dot notation to autocomplete the in-built functions of the Timer class, I didn't get suggestions.

While in v4.1 opening the same project gave intellisense.
![image](https://github.com/godotengine/godot/assets/29101013/5e5088d9-8e61-4d4b-a5b4-8deb37cd915b)


### Steps to reproduce

1. Create a Timer
2. Drag and drop in the gdscript editor.
3. Try to invoke the start method.

### Minimal reproduction project (MRP)

[Test DnD.zip](https://github.com/godotengine/godot/files/13658039/Test.DnD.zip)

ScriptLanguage::CodeCompletionOption option(*kw, ScriptLanguage::CODE_COMPLETION_KIND_PLAIN_TEXT);
		r_result.insert(option.display, option);
		kw++;
	}
	static const char *_keywords_with_space[] = {
		"and", "not", "or", "in", "as", "class", "class_name", "extends", "is", "func", "signal", "await",
		"const", "enum", "static", "var", "if", "elif", "else", "for", "match", "when", "while",
		nullptr
	};
	const char **kws = _keywords_with_space;
	while (*kws) {
		ScriptLanguage::CodeCompletionOption option(*kws, ScriptLanguage::CODE_COMPLETION_KIND_PLAIN_TEXT);
		option.insert_text += " ";
		r_result.insert(option.display, option);
		kws++;
	}
	static const char *_keywords_with_args[] = {
		"assert", "preload",
		nullptr
	};
	const char **kwa = _keywords_with_args;
	while (*kwa) {
		ScriptLanguage::CodeCompletionOption option(*kwa, ScriptLanguage::CODE_COMPLETION_KIND_FUNCTION);
		option.insert_text += "(";
		r_result.insert(option.display, option);
		kwa++;
	}
	List<StringName> utility_func_names;
	Variant::get_utility_function_list(&utility_func_names);
	for (List<StringName>::Element *E = utility_func_names.front(); E; E = E->next()) {