syntax_data: {"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"fulfill_cx.register_predicate_obligation(self.infcx,"}]}
source_snippet:             fulfill_cx.register_predicate_obligation(self.infcx, obligation);
context_after:             let errors = fulfill_cx.select_where_possible(self.infcx);