PR #40388 Swift 6 stricter concurrency checking

Swift 6 stricter concurrency checking #40388

DougGregor merged 5 commits into swiftlang:main from DougGregor:swift-6-stricter-concurrency-checking

In Swift 6, every context requires strict concurrency checking

30c5cf2a

Unify `@_predatesConcurrency` behavior for dynamic data race detection

f5d66200

Eliminate unprincipled unsafe global actor override behavior.

b61d98e6

Simplify override isolation checking.

43ce1183

Teach witness matching to apply minimal/strict diagnostics rules.

5a6f58e6

DougGregor merged 91fb149f into main 3 years ago

DougGregor deleted the swift-6-stricter-concurrency-checking branch 3 years ago

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