{"ast_node_type":"variable","tokens":[{"end":89,"kind":"keyword","start":0,"text":"let"}]}
        let llvm_self_profiler = &mut *(llvm_self_profiler as *mut LlvmSelfProfiler<'_>);
    unsafe {
        let pass_name = CStr::from_ptr(pass_name).to_str().expect("valid UTF-8");