syntax_data: {"ast_node_type":"variable","tokens":[{"end":53,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:             let def_kind = self.tcx.def_kind(uv.def);
context_before:         if let ty::ConstKind::Unevaluated(uv) = self.c.kind() {
context_after:             if let hir::def::DefKind::AssocConst = def_kind