Creates a method handle that computes the offset, in bytes, of the layout selected
by the given layout path, where the initial layout in the path is this layout.
Creates a method handle which, given a memory segment, returns a slice
corresponding to the layout selected by the given layout path, where the initial layout in the path is this layout.
Creates a var handle that accesses a memory segment at the offset selected by the given layout path,
where the initial layout in the path is this layout.