syntax_data: {"ast_node_type":"variable","tokens":[{"end":75,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                 let cleanup = block.terminator_mut().unwind_mut().unwrap();
context_before:                 // the `UnwindResume` -> `UnwindTerminate` terminator replacement.
context_after:                 *cleanup = UnwindAction::Terminate(UnwindTerminateReason::Abi);