Add -strict-concurrency=limited to tests that specifically need it.

This isolates us from changes in the default.

Author: DougGregor

test/Concurrency/async_tasks.swift

@@ -1,4 +1,4 @@
-// RUN: %target-typecheck-verify-swift  -disable-availability-checking
+// RUN: %target-typecheck-verify-swift -strict-concurrency=limited -disable-availability-checking
 // REQUIRES: concurrency
 
 @available(SwiftStdlib 5.1, *)

test/Concurrency/sendable_checking.swift

@@ -1,4 +1,4 @@
-// RUN: %target-typecheck-verify-swift
+// RUN: %target-typecheck-verify-swift -strict-concurrency=limited
 // REQUIRES: concurrency
 // REQUIRES: OS=macosx
 

test/Concurrency/sendable_module_checking.swift

@@ -1,7 +1,7 @@
 // RUN: %empty-directory(%t)
 // RUN: %target-swift-frontend -emit-module -emit-module-path %t/StrictModule.swiftmodule -module-name StrictModule -warn-concurrency %S/Inputs/StrictModule.swift
 // RUN: %target-swift-frontend -emit-module -emit-module-path %t/NonStrictModule.swiftmodule -module-name NonStrictModule %S/Inputs/NonStrictModule.swift
-// RUN: %target-swift-frontend -typecheck -disable-availability-checking -I %t 2>&1 %s | %FileCheck %s
+// RUN: %target-swift-frontend -typecheck -strict-concurrency=limited -disable-availability-checking -I %t 2>&1 %s | %FileCheck %s
 
 // REQUIRES: concurrency
 

test/Concurrency/sendable_preconcurrency.swift

@@ -1,7 +1,7 @@
 // RUN: %empty-directory(%t)
 // RUN: %target-swift-frontend -emit-module -emit-module-path %t/StrictModule.swiftmodule -module-name StrictModule -swift-version 6 %S/Inputs/StrictModule.swift
 // RUN: %target-swift-frontend -emit-module -emit-module-path %t/NonStrictModule.swiftmodule -module-name NonStrictModule %S/Inputs/NonStrictModule.swift
-// RUN: %target-typecheck-verify-swift -disable-availability-checking -I %t
+// RUN: %target-typecheck-verify-swift -strict-concurrency=limited -disable-availability-checking -I %t
 
 // REQUIRES: concurrency
 // REQUIRES: asserts

test/Concurrency/sendable_without_preconcurrency.swift

@@ -1,7 +1,7 @@
 // RUN: %empty-directory(%t)
 // RUN: %target-swift-frontend -emit-module -emit-module-path %t/StrictModule.swiftmodule -module-name StrictModule -swift-version 6 %S/Inputs/StrictModule.swift
 // RUN: %target-swift-frontend -emit-module -emit-module-path %t/NonStrictModule.swiftmodule -module-name NonStrictModule %S/Inputs/NonStrictModule.swift
-// RUN: %target-typecheck-verify-swift -disable-availability-checking -I %t
+// RUN: %target-typecheck-verify-swift -strict-concurrency=limited -disable-availability-checking -I %t
 
 // REQUIRES: concurrency
 // REQUIRES: asserts

test/Concurrency/sendable_without_preconcurrency_2.swift

@@ -1,7 +1,7 @@
 // RUN: %empty-directory(%t)
 // RUN: %target-swift-frontend -emit-module -emit-module-path %t/StrictModule.swiftmodule -module-name StrictModule -swift-version 6 %S/Inputs/StrictModule.swift
 // RUN: %target-swift-frontend -emit-module -emit-module-path %t/NonStrictModule.swiftmodule -module-name NonStrictModule %S/Inputs/NonStrictModule.swift
-// RUN: %target-typecheck-verify-swift -disable-availability-checking -I %t
+// RUN: %target-typecheck-verify-swift -strict-concurrency=limited -disable-availability-checking -I %t
 
 // REQUIRES: concurrency
 // REQUIRES: asserts

test/Concurrency/sr15049.swift

@@ -1,4 +1,4 @@
-// RUN: %target-typecheck-verify-swift -disable-availability-checking
+// RUN: %target-typecheck-verify-swift -disable-availability-checking -strict-concurrency=limited
 // REQUIRES: concurrency
 
 func testAsyncSequenceTypedPatternSendable<Seq: AsyncSequence>(_ seq: Seq) async throws where Seq.Element == Int, Seq: Sendable {

test/Distributed/distributed_protocol_isolation.swift

@@ -1,6 +1,6 @@
 // RUN: %empty-directory(%t)
 // RUN: %target-swift-frontend-emit-module -emit-module-path %t/FakeDistributedActorSystems.swiftmodule -module-name FakeDistributedActorSystems -disable-availability-checking %S/Inputs/FakeDistributedActorSystems.swift
-// RUN: %target-swift-frontend -typecheck -verify -disable-availability-checking -I %t 2>&1 %s
+// RUN: %target-swift-frontend -typecheck -verify -strict-concurrency=limited -disable-availability-checking -I %t 2>&1 %s
 // REQUIRES: concurrency
 // REQUIRES: distributed