syntax_data: {"ast_node_type":"other","tokens":[{"end":44,"kind":"keyword","start":0,"text":"Ty::new_generic_adt(tcx,"}]}
source_snippet:         Ty::new_generic_adt(tcx, def_id, ty)
context_before:         let def_id = tcx.require_lang_item(LangItem::OwnedBox, DUMMY_SP);
context_after:     }