function assertEmailLinkSignInLinkingDifferentDevicePage(providerName) {
  assertPage_(
      container,
      'firebaseui-id-page-email-link-sign-in-linking-different-device');
  assertPageContainsText(providerName);
}
Asserts that email link for new device linking page is rendered with expected
provider name.
@param {string} providerName The provider name to check.