syntax_data: {"ast_node_type":"import","tokens":[{"end":76,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // FIXME(eddyb) use lang items for methods instead of names.
context_before:             if tcx.is_lang_item(trait_ref.def_id, LangItem::Clone) {
context_after:                 let name = tcx.item_name(trait_item_id);