{"ast_node_type":"variable","tokens":[{"end":81,"kind":"keyword","start":0,"text":"if"}]}
        if let hir::Node::Expr(parent) = tcx.parent_hir_node(closure_expr.hir_id)
        // with receiver matching with local's type (modulo refs)
            && let hir::ExprKind::MethodCall(_, recv, ..) = parent.kind