syntax_data: {"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"self.wrap_binder(&trait_pred,"}]}
source_snippet:             self.wrap_binder(&trait_pred, WrapBinderMode::ForAll, |trait_pred, p| {
context_after:                 if trait_pred.polarity == ty::PredicatePolarity::Negative {