[Macros] Provide the freestanding macro role for expansion operations. #66509

Merged

DougGregor merged 3 commits intoswiftlang:mainfrom

DougGregor:unambiguous-freestanding-macro-role

Jun 10, 2023

Commits on Jun 9, 2023

[Macros] Only freestanding expression macros can have a non-Void result type
DougGregor
committed
[Macros] Provide the freestanding macro role for expansion operations.
DougGregor
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Diagnose macros that have multiple freestanding macro roles.
DougGregor
committed