syntax_data: {"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"Ty::new_adt(tcx,"}]}
source_snippet:         Ty::new_adt(tcx, pin, tcx.mk_args(&[Ty::new_ref(tcx, r, ty, mutbl).into()]))
context_before:         let pin = tcx.adt_def(tcx.require_lang_item(LangItem::Pin, DUMMY_SP));
context_after:     }