Bun does not provide last matched string when using RegExp["$&"]

[kevgeoleo]

What version of Bun is running?

1.2.4+fd9a5ea66

What platform is your computer?

Microsoft Windows NT 10.0.26100.0 x64

What steps can reproduce the bug?

Hi,
I would like to report an issue I encountered in Bun while I was running the following code snippet:

var input = "foo bar baz";
var re_g = new RegExp("bar", "g");
input.match(re_g);
console.log(RegExp["$&"]);  // Node and Deno: bar, Bun: no output

What is the expected behavior?

bar

What do you see instead?

no output

Additional information

No response

[RiskyMH]

regressed in bun v1.1.34, likely JSC change

---

Also, when I put bar into a group then it works as expected, so appears to only work if there are brackets in regex

"foo bar baz".match(/bar/g);
console.log([RegExp["$&"]]);  // Node: bar, Bun: <empty str>

"foo bar baz".match(/ba(r)/g);
console.log([RegExp["$&"]]);  // Node & Bun: bar

[RiskyMH]

I made a report to webkit with your repo: https://bugs.webkit.org/show_bug.cgi?id=289337