{"ast_node_type":"other","tokens":[{"end":93,"kind":"keyword","start":0,"text":"//"}]}
            // We have `S { foo: val, ..base }`. In `check_aggregate_rvalue` we have a single
        if let hir::ExprKind::Struct(_, _, hir::StructTailExpr::Base(_)) = expr.kind {
            // `Location` that covers both the `S { ... }` literal, all of its fields and the