### 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.
symbol_lookup_word = p_valid ? symbol_lookup_new_word : "";
	symbol_lookup_new_word = "";
	if (lookup_symbol_word != symbol_lookup_word) {
		_set_symbol_lookup_word(symbol_lookup_word);
	}
}
void CodeEdit::_bind_methods() {
	
	ClassDB::bind_method(D_METHOD("set_indent_size", "size"), &CodeEdit::set_indent_size);
	ClassDB::bind_method(D_METHOD("get_indent_size"), &CodeEdit::get_indent_size);
	ClassDB::bind_method(D_METHOD("set_indent_using_spaces", "use_spaces"), &CodeEdit::set_indent_using_spaces);
	ClassDB::bind_method(D_METHOD("is_indent_using_spaces"), &CodeEdit::is_indent_using_spaces);
	ClassDB::bind_method(D_METHOD("set_auto_indent_enabled", "enable"), &CodeEdit::set_auto_indent_enabled);
	ClassDB::bind_method(D_METHOD("is_auto_indent_enabled"), &CodeEdit::is_auto_indent_enabled);
	ClassDB::bind_method(D_METHOD("set_auto_indent_prefixes", "prefixes"), &CodeEdit::set_auto_indent_prefixes);
	ClassDB::bind_method(D_METHOD("get_auto_indent_prefixes"), &CodeEdit::get_auto_indent_prefixes);
	ClassDB::bind_method(D_METHOD("do_indent"), &CodeEdit::do_indent);
	ClassDB::bind_method(D_METHOD("indent_lines"), &CodeEdit::indent_lines);
	ClassDB::bind_method(D_METHOD("unindent_lines"), &CodeEdit::unindent_lines);
	ClassDB::bind_method(D_METHOD("convert_indent", "from_line", "to_line"), &CodeEdit::convert_indent, DEFVAL(-1), DEFVAL(-1));
	
	ClassDB::bind_method(D_METHOD("set_auto_brace_completion_enabled", "enable"), &CodeEdit::set_auto_brace_completion_enabled);
	ClassDB::bind_method(D_METHOD("is_auto_brace_completion_enabled"), &CodeEdit::is_auto_brace_completion_enabled);
	ClassDB::bind_method(D_METHOD("set_highlight_matching_braces_enabled", "enable"), &CodeEdit::set_highlight_matching_braces_enabled);