support nesting typekits

[chrisradek]

Fixes #7094

The caveat to this change is that you shouldn't have typekits that use regular fields.

For example - $.foo.type <-- if this is a regular field that contains an object, then that object will be wrapped in a Proxy, breaking object identity.

However, we follow the pattern of using get descriptors for this use-case instead, which would not break object identity.

[github-actions]

All changed packages have been documented.

• ✅ @typespec/compiler

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@typespec/compiler - feature ✏️

Adds support for nesting typekits

[azure-sdk]

You can try these changes here

🛝 Playground	🌐 Website	🛝 VSCode Extension

[bterlson]

Does this proxy wrap $.program/$.realm? Want to ensure we don't infect those values.

[chrisradek]

Does this proxy wrap .program/.realm? Want to ensure we don't infect those values.

It doesn't - those values are returned if accessed prior to the wrapping logic.

I added an assertion to the test case to make sure $.program === program