syntax_data: {"ast_node_type":"other","tokens":[{"end":48,"kind":"keyword","start":0,"text":"[storage_live,"}]}
source_snippet:         [storage_live, fut_ref_assign].to_vec(),
context_before:     let pin_fut_bb = body.basic_blocks_mut().push(BasicBlockData::new_stmts(
context_after:         Some(Terminator {