syntax_data: {"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"ty::TraitRef::new(tcx,"}]}
source_snippet:                     ty::TraitRef::new(tcx, trait_def_id, [normalized_ty])
context_before:                 let trait_ref = if tcx.generics_of(trait_def_id).own_params.len() == 1 {
context_after:                 } else {