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