[autorest v2] schema validator fails with the x-ms-paths

[jianyexi]

Before filling a bug

• [ ] have you checked the faq for known issues.
• [ ] have you checked existing issues

Describe the bug the below x-ms-paths will cause autorest schema validator failed https://github.com/Azure/azure-rest-api-specs/blob/8d9e22058eb70f4d20baf1f0594b22f76f957c96/specification/policyinsights/resource-manager/Microsoft.PolicyInsights/stable/2019-10-01/policyStates.json#L1167 wonder why we can't allow this path, as our tool still use autorest v2 to transform swagger into an resolved swagger and swagger.map

Expected behavior can we support this Additional context Add any other context about the problem here.