syntax_data: {"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":")"}]}
source_snippet:     ) -> Result<ty::Binder<'tcx, AutoImplConstituents<'tcx>>, SelectionError<'tcx>> {
context_before:         t: Ty<'tcx>,
context_after:         Ok(match *t.kind() {