Nate Chandler da71271d8f [CoroutineAccessors] Synthesize default req impls. ...

When a protocol which has a read (or modify) requirement is built with
the CoroutineAccessors feature, it gains a read2 (or modify2,
respectively) requirement.  For this to be compatible with binaries
built without the feature, a default implementation for these new
requirements must be provided.  Cause these new accessor requirements to
have default implementations by returning `true` from
`doesAccessorHaveBody` when the context is a `ProtocolDecl` and the
relevant availability check passes.

2024-11-07 16:47:09 -08:00

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