💻

• Would you like to work on a fix?

How are you using Babel?

Other (Next.js, Gatsby, vue-cli, ...)

Input code

(async function () {
  let items = [1, 2, 3, 4];
  for (const item of items) {
    await f(async (x) => {
      console.log(item);
    });
  }
})();

async function f(lambda) {
  await lambda();
}

Configuration file name

No response

Configuration

{
  "plugins": [
    "@babel/plugin-transform-async-to-generator"
  ]
}

Current and expected behavior

With @babel/helper-remap-async-to-generator@7.22.9 the output is 1 2 3 4 (correct, expected).
With @babel/helper-remap-async-to-generator@7.22.17 the output is 1 1 1 1 (incorrect, current).

Also if the inner lambda has no arguments (the x argument is removed), the output changes to the correct 1 2 3 4 in current version.

I think this PR caused the regression: #15922

Environment

• Babel version: 7.22.19
• Node: 18.10.0
• npm version: 9.7.2
• OS: Windows 11
• Monorepo: no

Possible solution

No response

Additional context

No response