syntax_data: {"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// * `storage_dead_on_unwind`, if true, then we should emit `StorageDead` even when unwinding
context_before: ///    coroutine drop occurred.
context_after: /// * `arg_count`, number of MIR local variables corresponding to fn arguments (used to assert that we don't drop those)