### 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)

bool is_shared = Variant::is_type_shared(assigned.type.builtin_type);
					if (!known_type || !is_shared) {
						if (!known_type) {
							
							gen->write_jump_if_shared(assigned);
						}
						if (!info.is_named) {
							gen->write_set(info.base, info.key, assigned);
						} else {
							gen->write_set_named(info.base, info.name, assigned);
						}
						if (!known_type) {
							gen->write_end_jump_if_shared();
						}
					}
					if (!info.is_named && info.key.mode == GDScriptCodeGenerator::Address::TEMPORARY) {
						gen->pop_temporary();
					}
					if (assigned.mode == GDScriptCodeGenerator::Address::TEMPORARY) {
						gen->pop_temporary();
					}
					assigned = info.base;
				}
				bool known_type = assigned.type.has_type;
				bool is_shared = Variant::is_type_shared(assigned.type.builtin_type);
				if (!known_type || !is_shared) {
					
					
					if (assign_class_member_property != StringName()) {
						if (!known_type) {