[tcgc] add disableUsageAccessPropagationToBase flag and separate exception usage from output usage

[tadelesh]

resolve: #1827

add disableUsageAccessPropagationToBase flag: this flag aims to support language that does not generate base model, it will skip the base model's propagation but will not skip the property or subtype of the base model.

[azure-sdk]

All changed packages have been documented.

• ✅ @azure-tools/typespec-client-generator-core

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@azure-tools/typespec-client-generator-core - feature ✏️

add isPagedResultModel helper function

@azure-tools/typespec-client-generator-core - feature ✏️

add disableUsageAccessPropagationToBase to support language that does not generate base model

@azure-tools/typespec-client-generator-core - fix ✏️

do not add protocol usage for protocol method's response type

[azure-sdk]

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[weidongxu-microsoft]

What's the previous behavior of model only used in @error? Does it has Output?

[tadelesh]

What's the previous behavior of model only used in @error? Does it has Output?

the model with @error or extends from model with @error will have Error usage. and model used in exception response will have usage Output. the problem here is error does not have propagation, and you could not filter out the model only used by that error model.

[ArcturusZhang]

what is the difference between Error usage and Exception usage? Why we need them both?

[weidongxu-microsoft]

What's the previous behavior of model only used in @error? Does it has Output?

the model with @error or extends from model with @error will have Error usage. and model used in exception response will have usage Output. the problem here is error does not have propagation, and you could not filter out the model only used by that error model.

Thanks. Kind of same question as Dapeng's. Not sure if we just have an Error usage which covers all model related to @error model and its reference seems reasonable. Though if we do have some case that we must treat Error and Exception differently, I am fine with that.