…modular protocols

…entsRequest

The current name is misleading because it suggests that the request accounts
for language feature state, which it does not (and is not supposed to).

Some decls that are expected to be synthesized for distributed actors are
printed explicitly in swiftinterfaces so diagnostics and assertions need to
take that possibility into account.

Resolves rdar://108533918

…med(init)`.

My recent change to parse initializer names in the macro role
introduced names now correctly distinguishes between the two forms, but
this breaks any existing macros written with the back-ticked form.
Treat the former as the latter to provide a grace period for such
macros.

Fixes rdar://108571834.

…ace-5.9

[5.9] Sema: Relax distributed actor typechecking for swiftinterfaces

…-as-init-5.9

[5.9] [Macros] Diagnose top-level expansion of undefined freestanding macro

…ule-5.9

[5.9 🍒] TypeCheckType: Fix existential `any` migration diagnostics for extra-modular protocols