### 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.
int line_height = get_line_height();
	if (GDVIRTUAL_IS_OVERRIDDEN(_filter_code_completion_candidates)) {
		code_completion_options.clear();
		code_completion_base = "";
		
		TypedArray<Dictionary> completion_options_sources;
		completion_options_sources.resize(code_completion_option_sources.size());
		int i = 0;
		for (const ScriptLanguage::CodeCompletionOption &E : code_completion_option_sources) {
			Dictionary option;
			option["kind"] = E.kind;
			option["display_text"] = E.display;
			option["insert_text"] = E.insert_text;
			option["font_color"] = E.font_color;
			option["icon"] = E.icon;
			option["default_value"] = E.default_value;
			option["location"] = E.location;
			completion_options_sources[i] = option;
			i++;
		}
		TypedArray<Dictionary> completion_options;
		GDVIRTUAL_CALL(_filter_code_completion_candidates, completion_options_sources, completion_options);
		
		if (completion_options.size() == 0) {
			cancel_code_completion();