syntax_data: {"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"(ZERO,"}]}
source_snippet:                     (ZERO, IndexVec::from_raw(vec![val])) // Poll::Ready(val)
context_before:                 let (variant_idx, operands) = if is_return {
context_after:                 } else {