syntax_data: {"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:         if !ty.has_type_flags(ty::TypeFlags::HAS_TY_FREE_ALIAS) {
context_before:     fn fold_ty(&mut self, ty: Ty<'tcx>) -> Ty<'tcx> {
context_after:             return ty;