{"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"///"}]}
///    opaque type from the current crate is not well-formed.
///    given one, and makes no other changes. A `OpaqueCast` projection on any type other than an
///  - [`ConstantIndex`](ProjectionElem::ConstantIndex): Computes an offset in units of `T` into the