### 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)

}
			} break;
			case GDScriptParser::IdentifierNode::LOCAL_VARIABLE: {
				GDScriptParser::DataType id_type = identifier->variable_source->get_datatype();
				if (!id_type.is_hard_type()) {
					id_type.kind = GDScriptParser::DataType::VARIANT;
					id_type.type_source = GDScriptParser::DataType::UNDETECTED;
					identifier->variable_source->set_datatype(id_type);
				}
			} break;
			case GDScriptParser::IdentifierNode::LOCAL_ITERATOR: {
				GDScriptParser::DataType id_type = identifier->bind_source->get_datatype();
				if (!id_type.is_hard_type()) {
					id_type.kind = GDScriptParser::DataType::VARIANT;
					id_type.type_source = GDScriptParser::DataType::UNDETECTED;
					identifier->variable_source->set_datatype(id_type);
				}
			} break;
			default:
				
				break;
		}
	}
#ifdef DEBUG_ENABLED
	if (assignee_type.is_hard_type() && assignee_type.builtin_type == Variant::INT && assigned_value_type.builtin_type == Variant::FLOAT) {
		parser->push_warning(p_assignment->assigned_value, GDScriptWarning::NARROWING_CONVERSION);
	}
#endif
}
void GDScriptAnalyzer::reduce_await(GDScriptParser::AwaitNode *p_await) {