syntax_data: {"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"ty::Adt(adt_def,"}]}
source_snippet:                 ty::Adt(adt_def, _args_ref) if !ty.is_box() => {
context_after:                     let (lo, hi) = cx.tcx().layout_scalar_valid_range(adt_def.did());