### 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)

codegen.generator->write_construct_array(local, Vector<GDScriptCodeGenerator::Address>());
						}
					}
					GDScriptCodeGenerator::Address src_address = _parse_expression(codegen, err, lv->initializer);
					if (err) {
						return err;
					}
					if (lv->use_conversion_assign) {
						gen->write_assign_with_conversion(local, src_address);
					} else {
						gen->write_assign(local, src_address);
					}
					if (src_address.mode == GDScriptCodeGenerator::Address::TEMPORARY) {
						codegen.generator->pop_temporary();
					}
					initialized = true;
				} else if (local_type.has_type) {
					
					if (local_type.has_container_element_type()) {
						codegen.generator->write_construct_typed_array(local, local_type.get_container_element_type(), Vector<GDScriptCodeGenerator::Address>());
						initialized = true;
					} else if (local_type.kind == GDScriptDataType::BUILTIN) {
						codegen.generator->write_construct(local, local_type.builtin_type, Vector<GDScriptCodeGenerator::Address>());
						initialized = true;
					}
					
				}
				
				if (!initialized && p_block->is_loop) {
					codegen.generator->write_construct(local, Variant::NIL, Vector<GDScriptCodeGenerator::Address>());