Function JPH_MutableCompoundShape_AddShape 

pub unsafe extern "C" fn JPH_MutableCompoundShape_AddShape(
    shape: *mut JPH_MutableCompoundShape,
    position: *const JPH_Vec3,
    rotation: *const JPH_Quat,
    child: *const JPH_Shape,
    userData: u32,
    index: u32,
) -> u32