{"ast_node_type":"variable","tokens":[{"end":75,"kind":"keyword","start":0,"text":"let"}]}
        let demangled_ir_name = rustc_demangle::demangle(part).to_string();
    for part in trimmed.split(", ") {
        let ir_name = profiler.get_or_alloc_cached_string(demangled_ir_name);