syntax_data: {"ast_node_type":"variable","tokens":[{"end":87,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:                 if let ty::ClauseKind::Trait(clause_pred) = clause.kind().skip_binder()
context_before:             for clause in param_env.caller_bounds() {
context_after:                     && clause_pred.polarity == ty::PredicatePolarity::Positive