dispatch: split `DISPATCH_EXPORT` and prepare for static linking#872

Merged

compnerd merged 2 commits intoswiftlang:mainfrom

compnerd:static

May 16, 2025

Commits on May 13, 2025

dispatch: extract `DISPATCH_EXTERN` from the `DISPATCH_EXPORT` macro
compnerd
committed

Commits on May 15, 2025

dispatch: introduce `dispatch_STATIC` and honour `dispatch_EXPORT`

compnerd
and
etcwilde
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