azure-json, track fluent package generation error

[XiaofeiCao]

Fluent codegen report with azure-json enabled: https://github.com/Azure/autorest.java/wiki/Fluent-Codegen-Report/3000dc11b8afde9c08990f681e6d2fc809b004a2
Fluent codegen report with azure-json disabled(previous behavior): https://github.com/Azure/autorest.java/wiki/Fluent-Codegen-Report/128b66b824a51b2d856c85d324b9ec3bb6cc2ec8

Higher priority:

• mgmt azure-json, stream-style issue for ManagementError subclass #2826 (affects premium SDK runtime)
• cdn (premium SDK)
• monitor (premium SDK)

Build failures with azure-json

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1. mgmt azure-json, stream-style issue for ManagementError subclass #2826
   0 of 4
   Mgmt +1
2. azurestack: when parent's flattened property is read-only, don't generate @Override for private getter in child class in different package. Swagger: https://github.com/Azure/azure-rest-api-specs/blob/main/specification/azurestack/resource-manager/Microsoft.AzureStack/stable/2022-06-01/Product.json#L433-L438
3. azureactivedirectory: We should generate super setters in child class which properties overrides read-only properties visibility in parent class. Swagger: https://github.com/Azure/azure-rest-api-specs/blob/main/specification/azureactivedirectory/resource-manager/Microsoft.Aadiam/stable/2020-03-01/privateLinkForAzureAD.json#L385-L389
4. In toJson, it called non-exist toInt method on extensible enum whose value is Integer. #2841
   0 of 3
   +0
5. managednetworkfabric: same as above cdn
6. monitor: same as above cdn
7. service-map
8. servicefabricmesh: same as above azureactivedirectory
9. storagemover: same as above cdn