[6.2][SwiftParser] Implement `nonisolated(nonsending)` specifier#3055

Merged

xedin merged 7 commits intoswiftlang:release/6.2from

xedin:nonisolated-nonsending-attr-6.2

Apr 17, 2025

Commits on Apr 15, 2025

[SwiftParser] Allow nonisolated to accept `nonsending` modifier
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[SwiftParser] Allow `nonisolated` modifier to have a single `nonsending` argument
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[SwiftParser] Make `nonisolated(nonsending)` parsing check before consuming '('
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[SwiftParser] Lookahead: Teach `skipTypeAttributeList` about modifiers with arguments
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[SwiftParser] Account for a newline between `nonisolated` and `(`
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[SwiftParser] Avoid consuming invalid `dependsOn` and `nonisolated` modifiers while skipping
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[SwiftParser] Parse `nonisolated` as modifier only if it has `nonsending` in expression context
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