syntax_data: {"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"self.visited.insert(self.cx.anonymize_bound_vars(o.predicate().kind()))"}]}
source_snippet:                 self.visited.insert(self.cx.anonymize_bound_vars(o.predicate().kind()))
context_before:             obligations.into_iter().filter(|o| {
context_after:             }),