### 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)

GDScriptDataType cast_type = _gdtype_from_datatype(og_cast_type, codegen.script);
			GDScriptCodeGenerator::Address result;
			if (cast_type.has_type) {
				if (og_cast_type.kind == GDScriptParser::DataType::ENUM) {
					
					cast_type.kind = GDScriptDataType::BUILTIN;
					cast_type.builtin_type = Variant::INT;
				}
				
				result = codegen.add_temporary(cast_type);
				GDScriptCodeGenerator::Address src = _parse_expression(codegen, r_error, cn->operand);
				gen->write_cast(result, src, cast_type);
				if (src.mode == GDScriptCodeGenerator::Address::TEMPORARY) {
					gen->pop_temporary();
				}
			} else {
				result = _parse_expression(codegen, r_error, cn->operand);
			}
			return result;
		} break;
		case GDScriptParser::Node::CALL: {
			const GDScriptParser::CallNode *call = static_cast<const GDScriptParser::CallNode *>(p_expression);
			GDScriptDataType type = _gdtype_from_datatype(call->get_datatype(), codegen.script);
			GDScriptCodeGenerator::Address result = codegen.add_temporary(type);
			GDScriptCodeGenerator::Address nil = GDScriptCodeGenerator::Address(GDScriptCodeGenerator::Address::NIL);
			GDScriptCodeGenerator::Address return_addr = p_root ? nil : result;
			Vector<GDScriptCodeGenerator::Address> arguments;
			for (int i = 0; i < call->arguments.size(); i++) {
				GDScriptCodeGenerator::Address arg = _parse_expression(codegen, r_error, call->arguments[i]);
				if (r_error) {