Vector2/3 and other types not usable in constexpr functions

[marcozee03]

Godot version

4.7

godot-cpp version

10.0.0-rc1

System information

Arch Linux

Issue description

Unlike the module api. Types such as Vector2, Vector3, Transform3D, etc... are not treated as literal types and cannot be used inside of constexpr functions

Steps to reproduce

This snippet of code compiles in a module but not a gdextension

struct MyVector
{
    float x = 0;
    float y = 0;
    float z = 0;
};
constexpr MyVector to_my_vector(Vector3 other_vector)
{
    MyVector my_vector;
    my_vector.x = other_vector.x;
    my_vector.y = other_vector.y;
    my_vector.z = other_vector.z;
    return my_vector;
}

Minimal reproduction project

N/A

[marcozee03]

I was poking around previous versions and learned that the vector and other math types are just out of sync. since 4.6 introduced that change. so the files from this commit would need to be updated. Unless this somehow breaks compatibility I could create the pr.

[Ivorforce]

Yea, if it's already fixed upstream syncing the changes over is fair game. Feel free to open a PR for it!