syntax_data: {"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"trait_ref:"}]}
source_snippet:                         trait_ref: proj.projection_term.trait_ref(tcx),
context_before:                     let trait_ref = proj.map_bound(|proj| TraitPredicate {
context_after:                         polarity: ty::PredicatePolarity::Positive,