LastContractView - handle eunm value order changes

[live1206]

Generator should be able to mitigate the breaking changes of enum order change to avoid custom code
such as https://github.com/Azure/azure-sdk-for-net/pull/53793/files#diff-2cb7c6853530fb07e8cf57678ea6093784b9d342b63785ad34a5b478e2962b4b

[jorgerangel-msft]

@live1206 - just to get clarity, in the example you linked the generated enum was

public enum KeyVaultCreateMode
    {
        /// <summary> recover. </summary>
        /// <summary> Recover. </summary>
        Recover,
        /// <summary> default. </summary>
        /// <summary> Default. </summary>
        Default,
    }

?

[live1206]

@jorgerangel-msft Yes, the order of enum value changed from previous GA version.