syntax_data: {"ast_node_type":"variable","tokens":[{"end":78,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                 let user_ty = self.user_args_applied_to_res(expr.hir_id, res);
context_before:             Res::Def(DefKind::Const, def_id) | Res::Def(DefKind::AssocConst, def_id) => {
context_after:                 ExprKind::NamedConst { def_id, args, user_ty }