Merge pull request #34891 from DougGregor/concurrency-arm64e-disable

[Concurrency] Tweak where concurrency tests run

Author: DougGregor

test/Concurrency/Runtime/async_task_priority_basic.swift

@@ -1,10 +1,17 @@
-// RUN: %target-run-simple-swift(-Xfrontend -enable-experimental-concurrency) | %FileCheck %s --dump-input always
+// RUN: %target-run-simple-swift(-Xfrontend -enable-experimental-concurrency %import-libdispatch) | %FileCheck %s --dump-input always
 // REQUIRES: executable_test
 // REQUIRES: concurrency
-// REQUIRES: OS=macosx
+// REQUIRES: libdispatch
+// XFAIL: CPU=arm64e
 
 import Dispatch
 
+#if canImport(Darwin)
+import Darwin
+#elseif canImport(Glibc)
+import Glibc
+#endif
+
 // ==== ------------------------------------------------------------------------
 // MARK: "Infrastructure" for the tests
 

test/Concurrency/Runtime/basic_future.swift

@@ -1,12 +1,18 @@
-// RUN: %target-run-simple-swift(-Xfrontend -enable-experimental-concurrency)
+// RUN: %target-run-simple-swift(-Xfrontend -enable-experimental-concurrency %import-libdispatch)
 
 // REQUIRES: executable_test
 // REQUIRES: concurrency
-// REQUIRES: OS=macosx
+// REQUIRES: libdispatch
 // XFAIL: CPU=arm64e
 
 import Dispatch
 
+#if canImport(Darwin)
+import Darwin
+#elseif canImport(Glibc)
+import Glibc
+#endif
+
 extension DispatchQueue {
   func async<R>(execute: @escaping () async throws -> R) -> Task.Handle<R> {
     let handle = Task.runDetached(operation: execute)

test/Concurrency/Runtime/future_fibonacci.swift

@@ -1,12 +1,18 @@
-// RUN: %target-run-simple-swift(-Xfrontend -enable-experimental-concurrency)
+// RUN: %target-run-simple-swift(-Xfrontend -enable-experimental-concurrency %import-libdispatch)
 
 // REQUIRES: executable_test
 // REQUIRES: concurrency
-// REQUIRES: OS=macosx
+// REQUIRES: libdispatch
 // XFAIL: CPU=arm64e
 
 import Dispatch
 
+#if canImport(Darwin)
+import Darwin
+#elseif canImport(Glibc)
+import Glibc
+#endif
+
 extension DispatchQueue {
   func async<R>(execute: @escaping () async throws -> R) -> Task.Handle<R> {
     let handle = Task.runDetached(operation: execute)