syntax_data: {"ast_node_type":"function","tokens":[{"end":87,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn visit_with<V: TypeVisitor<TyCtxt<'tcx>>>(&self, _visitor: &mut V) -> V::Result {
context_before: impl<'tcx> TypeVisitable<TyCtxt<'tcx>> for ty::AdtDef<'tcx> {
context_after:         V::Result::output()