### Godot version

4.0 dev_build

### System information

Ubuntu 22.04.1

### Issue description

The "Lookup Symbol" button don't appears for custorm class names.
Related issues: #68475,  #73167.
I tried apply #68311, #69473 and #73196. It don't helps.
The `Ctrl+LMB` works right for all cases.

### Steps to reproduce

Right click to the `CustomClassA` symbol in the `custom_class_b.gd` anywhere. The `Lookup Symbol` button don't appears in the context menu.

### Minimal reproduction project

Example from  #68475.
if (!p_only_functions && p_context.current_suite) {
		
		_find_identifiers_in_suite(p_context.current_suite, r_result);
	}
	if (p_context.current_class) {
		_find_identifiers_in_class(p_context.current_class, p_only_functions, (!p_context.current_function || p_context.current_function->is_static), false, r_result, p_recursion_depth);
	}
	List<StringName> functions;
	GDScriptUtilityFunctions::get_function_list(&functions);
	for (const StringName &E : functions) {
		MethodInfo function = GDScriptUtilityFunctions::get_function_info(E);
		ScriptLanguage::CodeCompletionOption option(String(E), ScriptLanguage::CODE_COMPLETION_KIND_FUNCTION);
		if (function.arguments.size() || (function.flags & METHOD_FLAG_VARARG)) {
			option.insert_text += "(";
		} else {
			option.insert_text += "()";
		}
		r_result.insert(option.display, option);
	}
	if (p_only_functions) {
		return;
	}
	_find_built_in_variants(r_result);
	static const char *_keywords[] = {
		"true", "false", "PI", "TAU", "INF", "NAN", "null", "self", "super",
		"break", "breakpoint", "continue", "pass", "return",
		nullptr
	};
	const char **kw = _keywords;
	while (*kw) {