### 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
Callable::CallError err;
					Variant::construct(base_type.builtin_type, base, nullptr, 0, err);
					if (err.error != Callable::CallError::CALL_OK) {
						return;
					}
				}
				List<MethodInfo> methods;
				base.get_method_list(&methods);
				for (const MethodInfo &E : methods) {
					if (E.name == p_method) {
						r_arghint = _make_arguments_hint(E, p_argidx);
						return;
					}
				}
				base_type.kind = GDScriptParser::DataType::UNRESOLVED;
			} break;
			default: {
				base_type.kind = GDScriptParser::DataType::UNRESOLVED;
			} break;
		}
	}
}
static bool _get_subscript_type(GDScriptParser::CompletionContext &p_context, const GDScriptParser::SubscriptNode *p_subscript, GDScriptParser::DataType &r_base_type, Variant *r_base = nullptr) {
	if (p_context.base == nullptr) {
		return false;
	}
	if (p_subscript->base->datatype.type_source == GDScriptParser::DataType::ANNOTATED_EXPLICIT) {
		
		return false;
	}