### 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 (Object::cast_to<Script>(*p_resource)) {
		return memnew(ScriptTextEditor);
	}
	return nullptr;
}
void ScriptTextEditor::register_editor() {
	ED_SHORTCUT("script_text_editor/move_up", TTR("Move Up"), KeyModifierMask::ALT | Key::UP);
	ED_SHORTCUT("script_text_editor/move_down", TTR("Move Down"), KeyModifierMask::ALT | Key::DOWN);
	ED_SHORTCUT("script_text_editor/delete_line", TTR("Delete Line"), KeyModifierMask::CMD_OR_CTRL | KeyModifierMask::SHIFT | Key::K);
	
	
	ED_SHORTCUT("script_text_editor/indent", TTR("Indent"), Key::NONE);
	ED_SHORTCUT("script_text_editor/unindent", TTR("Unindent"), KeyModifierMask::SHIFT | Key::TAB);
	ED_SHORTCUT("script_text_editor/toggle_comment", TTR("Toggle Comment"), KeyModifierMask::CMD_OR_CTRL | Key::K);
	ED_SHORTCUT("script_text_editor/toggle_fold_line", TTR("Fold/Unfold Line"), KeyModifierMask::ALT | Key::F);
	ED_SHORTCUT_OVERRIDE("script_text_editor/toggle_fold_line", "macos", KeyModifierMask::CTRL | KeyModifierMask::META | Key::F);
	ED_SHORTCUT("script_text_editor/fold_all_lines", TTR("Fold All Lines"), Key::NONE);
	ED_SHORTCUT("script_text_editor/unfold_all_lines", TTR("Unfold All Lines"), Key::NONE);
	ED_SHORTCUT("script_text_editor/duplicate_selection", TTR("Duplicate Selection"), KeyModifierMask::SHIFT | KeyModifierMask::CTRL | Key::D);
	ED_SHORTCUT_OVERRIDE("script_text_editor/duplicate_selection", "macos", KeyModifierMask::SHIFT | KeyModifierMask::META | Key::C);
	ED_SHORTCUT("script_text_editor/evaluate_selection", TTR("Evaluate Selection"), KeyModifierMask::CMD_OR_CTRL | KeyModifierMask::SHIFT | Key::E);
	ED_SHORTCUT("script_text_editor/toggle_word_wrap", TTR("Toggle Word Wrap"), KeyModifierMask::ALT | Key::Z);
	ED_SHORTCUT("script_text_editor/trim_trailing_whitespace", TTR("Trim Trailing Whitespace"), KeyModifierMask::CMD_OR_CTRL | KeyModifierMask::ALT | Key::T);
	ED_SHORTCUT("script_text_editor/convert_indent_to_spaces", TTR("Convert Indent to Spaces"), KeyModifierMask::CMD_OR_CTRL | KeyModifierMask::SHIFT | Key::Y);
	ED_SHORTCUT("script_text_editor/convert_indent_to_tabs", TTR("Convert Indent to Tabs"), KeyModifierMask::CMD_OR_CTRL | KeyModifierMask::SHIFT | Key::I);