### Godot version

ef025711a

### System information

ArchLinux x11

### Issue description

Accessing a scene unique node like this:
```gdscript
class_name Class extends Node
static func get_label() -> Label:
	return %label
```
and then accessing that class later:
```gdscript
func _ready() -> void:
	Main.get_label().text = "hello world"
```
causes a strange error when in the editor, and a normal error when run directly.
![image](https://user-images.githubusercontent.com/70787919/229785642-6aad4e31-6bd9-4eb5-bee4-7445b48a99bb.png)
```c++
ERROR: Node not found: "%label" (relative to "/root/main").
   at: get_node (scene/main/node.cpp:1364)
```
Instead of returning null.
As opposed to when using `get_node`:
```

SCRIPT ERROR: Cannot call method 'get_node' on a null value.
          at: get_label (res://main.gd:5)
SCRIPT ERROR: Invalid set index 'text' (on base: 'Nil') with value of type 'String'.
          at: _ready (res://control.gd:4)
```

### Steps to reproduce

Run mrp or follow outlined steps

### Minimal reproduction project

[bug.zip](https://github.com/godotengine/godot/files/11148287/bug.zip)

rename_hint = " " + vformat(R"(Did you mean to use "%s"?)", String(renamed_function_name) + "()");
				}
			}
			push_error(vformat(R"*(Function "%s()" not found in base %s.%s)*", p_call->function_name, base_name, rename_hint), p_call->is_super ? p_call : p_call->callee);
#else
			push_error(vformat(R"*(Function "%s()" not found in base %s.)*", p_call->function_name, base_name), p_call->is_super ? p_call : p_call->callee);
#endif 
		} else if (!found && (!p_call->is_super && base_type.is_hard_type() && base_type.kind == GDScriptParser::DataType::NATIVE && base_type.is_meta_type)) {
			push_error(vformat(R"*(Static function "%s()" not found in base "%s".)*", p_call->function_name, base_type.native_type), p_call);
		}
	}
	if (call_type.is_coroutine && !p_is_await && !p_is_root) {
		push_error(vformat(R"*(Function "%s()" is a coroutine, so it must be called with "await".)*", p_call->function_name), p_call);
	}
	p_call->set_datatype(call_type);
}
void GDScriptAnalyzer::reduce_cast(GDScriptParser::CastNode *p_cast) {
	reduce_expression(p_cast->operand);
	GDScriptParser::DataType cast_type = type_from_metatype(resolve_datatype(p_cast->cast_type));
	if (!cast_type.is_set()) {
		mark_node_unsafe(p_cast);
		return;
	}
	p_cast->set_datatype(cast_type);
	if (p_cast->operand->is_constant) {
		update_const_expression_builtin_type(p_cast->operand, cast_type, "cast", true);
		if (cast_type.is_variant() || p_cast->operand->get_datatype() == cast_type) {
			p_cast->is_constant = true;
			p_cast->reduced_value = p_cast->operand->reduced_value;
		}