### 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)

gen->write_jump_if_shared(assigned);
						}
						gen->write_set_member(assigned, assign_class_member_property);
						if (!known_type) {
							gen->write_end_jump_if_shared();
						}
					} else if (is_member_property) {
						
						if (!known_type) {
							gen->write_jump_if_shared(assigned);
						}
						if (member_property_has_setter && !member_property_is_in_setter) {
							Vector<GDScriptCodeGenerator::Address> args;
							args.push_back(assigned);
							gen->write_call(GDScriptCodeGenerator::Address(), GDScriptCodeGenerator::Address(GDScriptCodeGenerator::Address::SELF), member_property_setter_function, args);
						} else {
							gen->write_assign(target_member_property, assigned);
						}
						if (!known_type) {
							gen->write_end_jump_if_shared();
						}
					}
				}
				if (assigned.mode == GDScriptCodeGenerator::Address::TEMPORARY) {
					gen->pop_temporary();
				}
			} else if (assignment->assignee->type == GDScriptParser::Node::IDENTIFIER && _is_class_member_property(codegen, static_cast<GDScriptParser::IdentifierNode *>(assignment->assignee)->name)) {
				
				GDScriptCodeGenerator::Address assigned_value = _parse_expression(codegen, r_error, assignment->assigned_value);
				if (r_error) {