syntax_data: {"ast_node_type":"other","tokens":[{"end":22,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // Poll::Ready(())
context_before: fn return_poll_ready_assign<'tcx>(tcx: TyCtxt<'tcx>, source_info: SourceInfo) -> Statement<'tcx> {
context_after:     let poll_def_id = tcx.require_lang_item(LangItem::Poll, source_info.span);