### 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 (GDVIRTUAL_CALL(_request_code_completion, p_force)) {
		return;
	}
	
	bool ignored = code_completion_active && !code_completion_options.is_empty();
	if (ignored) {
		ScriptLanguage::CodeCompletionKind kind = ScriptLanguage::CODE_COMPLETION_KIND_PLAIN_TEXT;
		const ScriptLanguage::CodeCompletionOption *previous_option = nullptr;
		for (int i = 0; i < code_completion_options.size(); i++) {
			const ScriptLanguage::CodeCompletionOption &current_option = code_completion_options[i];
			if (!previous_option) {
				previous_option = &current_option;
				kind = current_option.kind;
			}
			if (previous_option->kind != current_option.kind) {
				ignored = false;
				break;
			}