function reportScope(scopeKey) {
      context.report({
        node: scopeKey,
        messageId: 'forbiddenScopeAttribute',
        // fix to use `slot-scope`
        fix: (fixer) => fixer.replaceText(scopeKey, 'slot-scope')
      })
    }
Reports `scope` node
@param {VDirectiveKey} scopeKey node of `scope`
@returns {void}