Error when explicitly specifying return type of generic lambda in constraint? #25699

	name: LLVM Bugs notifier

	permissions:
	contents: read
	issues: read

	on:
	issues:
	types:
	- opened

	jobs:
	auto-subscribe:
	runs-on: ubuntu-latest
	if: github.repository == 'llvm/llvm-project'
	steps:
	- uses: actions/setup-node@v4
	with:
	node-version: 18
	check-latest: true
	- run: npm install mailgun.js form-data
	- name: Send notification
	uses: actions/github-script@v6
	env:
	MAILGUN_API_KEY: ${{ secrets.LLVM_BUGS_KEY }}
	with:
	script: \|
	const Mailgun = require('mailgun.js');
	const formData = require('form-data');

	const mailgun = new Mailgun(formData);
	const DOMAIN = 'email.llvm.org';

	const mg = mailgun.client({ username: 'api', key: process.env.MAILGUN_API_KEY });

	github.rest.issues.get({
	issue_number: context.issue.number,
	owner: context.repo.owner,
	repo: context.repo.repo
	})
	.then((issue) => {
	const payload = {
	author : issue.data.user.login,
	issue : issue.data.number,
	title : issue.data.title,
	url : issue.data.html_url,
	labels : issue.data.labels.map((label) => label.name),
	assignee : issue.data.assignees.map((assignee) => assignee.login),
	body : issue.data.body
	};

	const data = {
	from: 'LLVM Bugs <[email protected]>',
	to: '[email protected]',
	subject: `[Bug ${issue.data.number}] ${issue.data.title}`,
	template: 'new-github-issue',
	'o:tracking-clicks': 'no',
	'h:X-Mailgun-Variables': JSON.stringify(payload)
	};

	return mg.messages.create(DOMAIN, data);
	})
	.then((msg) => console.log(msg));

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