`./node/_tools/test/parallel/test-http-url.parse-post.js` causes segfaults after denoland/deno#16579

[kt3k]

After denoland/deno#16383, ./node/_tools/test/parallel/test-http-url.parse-post.js results segmentation fault

You can check this with the following script at the root of std:

test.js

import { createRequire } from "./node/module.ts";
const require = createRequire(import.meta.url);
require("./node/_tools/test/parallel/test-http-url.parse-post.js");

$ deno run -A --unstable test.js
zsh: segmentation fault  deno run -A --unstable b.js
$ deno run -A --unstable test.js
deno(32845,0x11e27e600) malloc: Heap corruption detected, free list is damaged at 0x6000002e00b0
*** Incorrect guard value: 151948978684078
deno(32845,0x11e27e600) malloc: *** set a breakpoint in malloc_error_break to debug
zsh: abort      deno run -A --unstable b.js

(There are 2 patterns of error messages (on macOS), and also sometimes it finishes without error)

[kt3k]

The example was reduced to:

const ctl = new AbortController();
Deno.serve(() =>
  new Promise((resolve) => {
    resolve(new Response(new TextEncoder().encode("ok")));
    ctl.abort();
  }), {
  signal: ctl.signal,
  onListen({ port }) {
    fetch(`http://localhost:${port}`, { method: "POST", body: "" });
  },
});