syntax_data: {"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// and even the full `Inline` doesn't call `visit_body`, so there's nowhere
context_before:     /// Needed because the `CostChecker` is used sometimes for just blocks,
context_after:     /// to put this logic in the visitor.