{"ast_node_type":"other","tokens":[{"end":104,"kind":"keyword","start":0,"text":"//"}]}
            // at slightly adjusted offsets. The reason we do this is so that in `mark_provenance_range`
            // is mostly filled with redundant information since it's just N copies of the same `Prov`s
            // we can use `insert_presorted`. That wouldn't work with an `Iterator` that just produces