### 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)

int index = 0;
	switch (p_type.kind) {
		case GDScriptDataType::BUILTIN: {
			append_opcode(GDScriptFunction::OPCODE_CAST_TO_BUILTIN);
			index = p_type.builtin_type;
		} break;
		case GDScriptDataType::NATIVE: {
			int class_idx = GDScriptLanguage::get_singleton()->get_global_map()[p_type.native_type];
			Variant nc = GDScriptLanguage::get_singleton()->get_global_array()[class_idx];
			append_opcode(GDScriptFunction::OPCODE_CAST_TO_NATIVE);
			index = get_constant_pos(nc) | (GDScriptFunction::ADDR_TYPE_CONSTANT << GDScriptFunction::ADDR_BITS);
		} break;
		case GDScriptDataType::SCRIPT:
		case GDScriptDataType::GDSCRIPT: {
			Variant script = p_type.script_type;
			int idx = get_constant_pos(script) | (GDScriptFunction::ADDR_TYPE_CONSTANT << GDScriptFunction::ADDR_BITS);
			append_opcode(GDScriptFunction::OPCODE_CAST_TO_SCRIPT);
			index = idx;
		} break;
		default: {
			return;
		}
	}
	append(p_source);
	append(p_target);
	append(index);
}
void GDScriptByteCodeGenerator::write_call(const Address &p_target, const Address &p_base, const StringName &p_function_name, const Vector<Address> &p_arguments) {