{"ast_node_type":"variable","tokens":[{"end":63,"kind":"keyword","start":0,"text":"let"}]}
                let val = ConstValue::Slice { alloc_id, meta };
                let (alloc_id, meta) = alloc_type_name(tcx, tp_ty);
                let val = self.const_val_to_op(val, dest.layout.ty, Some(dest.layout))?;