{"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"//"}]}
    // sent to rustc_codegen_gcc and not the LLVM backend.
    // We have a different environment variable than RUSTFLAGS to make sure those flags are only
    if let Ok(cg_rustflags) = std::env::var("CG_RUSTFLAGS") {