syntax_data: {"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"impl<'o,"}]}
source_snippet: impl<'o, 'tcx> Iterator for TraitObligationStackList<'o, 'tcx> {
context_after:     type Item = &'o TraitObligationStack<'o, 'tcx>;