{"ast_node_type":"variable","tokens":[{"end":57,"kind":"keyword","start":0,"text":"let"}]}
    let llvm_abiname = &sess.target.options.llvm_abiname;
    // If llvm_abiname is empty, emit nothing.
    if matches!(sess.target.arch.as_ref(), "riscv32" | "riscv64") && !llvm_abiname.is_empty() {