syntax_data: {"ast_node_type":"variable","tokens":[{"end":32,"kind":"keyword","start":0,"text":"&&"}]}
source_snippet:         && let Some(trait_ref) =
context_before:         if let DefKind::AssocFn = tcx.def_kind(def_id)
context_after:             tcx.impl_of_assoc(def_id.to_def_id()).and_then(|def_id| tcx.impl_trait_ref(def_id))