--perf-basic-prof-only-functions flag is broken since v8 8.6 #50225

#! /usr/bin/env bash

# Create a repro js script.
cat <<'eof' > /tmp/repro.js
  process.stdout.write(`${process.pid}`);

  const reproRe = /reproRe/gi;

  function reproFnOptimized() {
    for (let i = 0; i < 10000; i++) {
      const match = reproRe.exec(Math.random().toString());
    }
  }
  function reproFnInterpreted() {
      reproFnOptimized();
  }
  reproFnInterpreted();
  console.error(`[Using ${process.execArgv[0]}]: /tmp/perf-${process.pid}.map`);
eof

# Collect JIT symbols from the repro script.
basic_prof_pid="$(node --perf-basic-prof /tmp/repro.js)"
functions_only_pid="$(node --perf-basic-prof-only-functions /tmp/repro.js)"

# --perf-basic-prof emits function code kinds.
echo "=== Testing --perf-basic-prof output ==="
if ! grep -E --color 'reproFn\w+'  "/tmp/perf-${basic_prof_pid}.map"; then
  echo "--- (Repro Error): expected to find JS function symbols"
else
  echo '--- (Repro OK)'
fi

# --perf-basic-prof-only-functions does not emit JS functions, but does emit regex kinds.
echo "=== Testing --perf-basic-prof-only-functions output ==="
if grep -E --color 'reproFn\w+'  "/tmp/perf-${functions_only_pid}.map"; then
  echo "Error: expected not to find JS function symbols"
elif ! grep -E --color 'reproRe'  "/tmp/perf-${functions_only_pid}.map"; then
  echo "--- (Repro Error): expected to find RegEx symbols"
else
  echo '--- (Repro OK)'
fi