### Godot version

4.0 Beta10

### System information

Windows 10, Vulkan, GTX1060

### Issue description

`PropertyTweener`'s methods' return value are not discarded and effect the unary operator at next line.

In Editor:
![in_editor](https://user-images.githubusercontent.com/61624558/210715100-04bdf283-7954-4be3-94ca-338987b24c5b.png)


In cpp:
![in_cpp](https://user-images.githubusercontent.com/61624558/210715127-519f6d54-fc15-468f-9aca-ba7d387a5a7b.png)


### Steps to reproduce

Just run the Minimal reproduction project.

### Minimal reproduction project

[Bug Report.zip](https://github.com/godotengine/godot/files/10349829/Bug.Report.zip)

if (HAS_BUILTIN_TYPE(p_source) && Variant::get_member_validated_getter(p_source.type.builtin_type, p_name)) {
		Variant::ValidatedGetter getter = Variant::get_member_validated_getter(p_source.type.builtin_type, p_name);
		append_opcode(GDScriptFunction::OPCODE_GET_NAMED_VALIDATED);
		append(p_source);
		append(p_target);
		append(getter);
		return;
	}
	append_opcode(GDScriptFunction::OPCODE_GET_NAMED);
	append(p_source);
	append(p_target);
	append(p_name);
}
void GDScriptByteCodeGenerator::write_set_member(const Address &p_value, const StringName &p_name) {
	append_opcode(GDScriptFunction::OPCODE_SET_MEMBER);
	append(p_value);
	append(p_name);
}
void GDScriptByteCodeGenerator::write_get_member(const Address &p_target, const StringName &p_name) {
	append_opcode(GDScriptFunction::OPCODE_GET_MEMBER);
	append(p_target);
	append(p_name);
}
void GDScriptByteCodeGenerator::write_assign_with_conversion(const Address &p_target, const Address &p_source) {