syntax_data: {"ast_node_type":"other","tokens":[{"end":32,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: ///   instructions on unwinding)
context_before: ///   panic occurred (a subset of the drops in `scope`, since we sometimes elide StorageDead and other
context_after: /// * `dropline_to`, describes the drops that would occur at this point in the code if a