### 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 (setter_function == nullptr) {
						push_error(vformat(R"(Setter "%s" not found.)", member.variable->setter_pointer->name), member.variable);
					} else if (setter_function->parameters.size() != 1) {
						push_error(vformat(R"(Function "%s" cannot be used as setter because of its signature.)", setter_function->identifier->name), member.variable);
					} else if (!is_type_compatible(member.variable->datatype, setter_function->parameters[0]->datatype, true)) {
						push_error(vformat(R"(Function with argument type "%s" cannot be used as setter for a property of type "%s".)", setter_function->parameters[0]->datatype.to_string(), member.variable->datatype.to_string()), member.variable);
					} else {
						has_valid_setter = true;
#ifdef DEBUG_ENABLED
						if (member.variable->datatype.builtin_type == Variant::FLOAT && setter_function->parameters[0]->datatype.builtin_type == Variant::INT) {
							parser->push_warning(member.variable, GDScriptWarning::NARROWING_CONVERSION);
						}
#endif
					}
				}
				if (member.variable->datatype.is_variant() && has_valid_getter && has_valid_setter) {
					if (!is_type_compatible(getter_function->datatype, setter_function->parameters[0]->datatype, true)) {
						push_error(vformat(R"(Getter with type "%s" cannot be used along with setter of type "%s".)", getter_function->datatype.to_string(), setter_function->parameters[0]->datatype.to_string()), member.variable);
					}
				}
#ifdef DEBUG_ENABLED
				parser->ignored_warning_codes = previously_ignored;
#endif 
			}
		}
	}
	parser->current_class = previous_class;
}
void GDScriptAnalyzer::resolve_class_body(GDScriptParser::ClassNode *p_class, bool p_recursive) {