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Move operator type inference to Type methods #6820

	# https://help.github.com/en/categories/automating-your-workflow-with-github-actions

	name: "Backward Compatibility"

	on:
	pull_request:
	push:
	branches:
	- "2.3.x"
	paths:
	- 'src/**'
	- '.github/workflows/backward-compatibility.yml'

	concurrency:
	group: bc-${{ github.head_ref \|\| github.run_id }} # will be canceled on subsequent pushes in pull requests but not branches
	cancel-in-progress: true

	permissions:
	contents: read

	jobs:
	backward-compatibility:
	name: "Backward Compatibility"

	runs-on: "ubuntu-latest"
	timeout-minutes: 60

	steps:
	- name: Harden the runner (Audit all outbound calls)
	uses: step-security/harden-runner@46b06cea07f9e64621fdf066ba77ac6915163d43 # v2.22.3
	with:
	egress-policy: audit

	- name: "Checkout"
	uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
	with:
	fetch-depth: 0

	- name: "Install PHP"
	uses: "shivammathur/setup-php@eb7c497e18156a6bbabfef1d3a82760b9eda3962" # 2.40.0
	with:
	coverage: "none"
	php-version: "8.4"

	- uses: "ramsey/composer-install@65e4f84970763564f46a70b8a54b90d033b3bdda" # v4.0.0

	- name: "Install BackwardCompatibilityCheck"
	run: \|
	composer global config minimum-stability dev
	composer global config prefer-stable true
	composer global require --dev ondrejmirtes/backward-compatibility-check:^8.27.0.2

	- name: "Check"
	run: '"$(composer global config bin-dir --absolute)"/roave-backward-compatibility-check --install-development-dependencies --format=console --format=github-actions'