### Godot version

4.0.2

### System information

Ubuntu 22.04.1 LTS

### Issue description

So far I've found these ones:

![Screenshot from 2023-05-10 17-56-42](https://github.com/godotengine/godot/assets/85438892/b161b14a-cb7d-46fe-8398-816bf354a929)
![Screenshot from 2023-05-10 18-01-02](https://github.com/godotengine/godot/assets/85438892/b0fefcfb-4246-4ebb-ae7b-dd798d7a1d63)

But there are likely more like them. They are invalid, at least in the context I encountered them here (at the beginning of a regular line of script)

### Steps to reproduce

Type `Anchor` in the code editor.

### Minimal reproduction project

N/A
int location = p_recursion_depth + _get_method_location(type, E.name);
					ScriptLanguage::CodeCompletionOption option(E.name, ScriptLanguage::CODE_COMPLETION_KIND_FUNCTION, location);
					if (E.arguments.size()) {
						option.insert_text += "(";
					} else {
						option.insert_text += "()";
					}
					r_result.insert(option.display, option);
				}
				return;
			} break;
			case GDScriptParser::DataType::ENUM:
			case GDScriptParser::DataType::BUILTIN: {
				Callable::CallError err;
				Variant tmp;
				Variant::construct(base_type.builtin_type, tmp, nullptr, 0, err);
				if (err.error != Callable::CallError::CALL_OK) {
					return;
				}
				if (!p_only_functions) {
					List<PropertyInfo> members;
					if (p_base.value.get_type() != Variant::NIL) {
						p_base.value.get_property_list(&members);
					} else {
						tmp.get_property_list(&members);
					}
					for (const PropertyInfo &E : members) {
						if (!String(E.name).contains("/")) {
							ScriptLanguage::CodeCompletionOption option(E.name, ScriptLanguage::CODE_COMPLETION_KIND_MEMBER);
							if (GDScriptParser::theme_color_names.has(E.name)) {