### 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_ASSIGN_TRUE);
	append(p_target);
}
void GDScriptByteCodeGenerator::write_assign_false(const Address &p_target) {
	append_opcode(GDScriptFunction::OPCODE_ASSIGN_FALSE);
	append(p_target);
}
void GDScriptByteCodeGenerator::write_assign_default_parameter(const Address &p_dst, const Address &p_src) {
	write_assign(p_dst, p_src);
	function->default_arguments.push_back(opcodes.size());
}
void GDScriptByteCodeGenerator::write_store_global(const Address &p_dst, int p_global_index) {
	append_opcode(GDScriptFunction::OPCODE_STORE_GLOBAL);
	append(p_dst);
	append(p_global_index);
}
void GDScriptByteCodeGenerator::write_store_named_global(const Address &p_dst, const StringName &p_global) {
	append_opcode(GDScriptFunction::OPCODE_STORE_NAMED_GLOBAL);
	append(p_dst);
	append(p_global);
}
void GDScriptByteCodeGenerator::write_cast(const Address &p_target, const Address &p_source, const GDScriptDataType &p_type) {