syntax_data: {"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // destination here, and then gen it again in `call_return_effect`.
context_before:             // Since `propagate_call_unwind` doesn't exist, we have to kill the
context_after:             TerminatorKind::Call { destination, .. } => {