### 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 (nc && (ClassDB::has_signal(nc->get_name(), identifier) || ClassDB::has_method(nc->get_name(), identifier))) {
					
					GDScriptCodeGenerator::Address temp = codegen.add_temporary(); 
					GDScriptCodeGenerator::Address self(GDScriptCodeGenerator::Address::SELF);
					gen->write_get_named(temp, identifier, self);
					return temp;
				}
			}
			
			if (GDScriptLanguage::get_singleton()->get_global_map().has(identifier)) {
				
				
				HashMap<StringName, ProjectSettings::AutoloadInfo> autoloads = ProjectSettings::get_singleton()->get_autoload_list();
				if (autoloads.has(identifier) && autoloads[identifier].is_singleton) {
					GDScriptCodeGenerator::Address global = codegen.add_temporary(_gdtype_from_datatype(in->get_datatype(), codegen.script));
					int idx = GDScriptLanguage::get_singleton()->get_global_map()[identifier];
					gen->write_store_global(global, idx);
					return global;
				} else {
					int idx = GDScriptLanguage::get_singleton()->get_global_map()[identifier];
					Variant global = GDScriptLanguage::get_singleton()->get_global_array()[idx];
					return codegen.add_constant(global);
				}
			}
			
			if (ScriptServer::is_global_class(identifier)) {
				const GDScriptParser::ClassNode *class_node = codegen.class_node;
				while (class_node->outer) {
					class_node = class_node->outer;