{"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"///"}]}
///    case this is analogous to transforming a struct. E.g., Box<[i32; 4]> ->
///    At some point, of course, `Box` should move out of the compiler, in which
///    Box<[i32]> is an `Adjust::Unsize` with the target `Box<[i32]>`.