### 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)

append_opcode(GDScriptFunction::OPCODE_JUMP);
	append(continue_addrs.back()->get());
	continue_addrs.pop_back();
	
	for (int i = 0; i < 2; i++) {
		patch_jump(for_jmp_addrs.back()->get());
		for_jmp_addrs.pop_back();
	}
	
	for (const int &E : current_breaks_to_patch.back()->get()) {
		patch_jump(E);
	}
	current_breaks_to_patch.pop_back();
	
	for_iterator_variables.pop_back();
	for_counter_variables.pop_back();
	for_container_variables.pop_back();
}
void GDScriptByteCodeGenerator::start_while_condition() {