syntax_data: {"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:             if tcx.is_lang_item(trait_ref.def_id, LangItem::Clone) {
context_before:         traits::ImplSource::Builtin(BuiltinImplSource::Misc | BuiltinImplSource::Trivial, _) => {
context_after:                 // FIXME(eddyb) use lang items for methods instead of names.