syntax_data: {"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"hir::Node::ImplItem(ii)"}]}
source_snippet:         hir::Node::ImplItem(ii) => associated_item_from_impl_item(tcx, ii),
context_before:         hir::Node::TraitItem(ti) => associated_item_from_trait_item(tcx, ti),
context_after:         node => span_bug!(tcx.def_span(def_id), "impl item or item not found: {:?}", node,),