Fuzz introspector: conversion
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 __cxa_guard_acquire [call site] 00001
1 populate_functions() [function] [call site] 00002
1 __cxa_guard_release [call site] 00003