[Concurrency] Generalize futures tests

DougGregor · DougGregor · commit 3347f8d4b8a3 · 2020-11-30T10:14:30.000-08:00
diff --git a/test/Concurrency/Runtime/async_task_priority_basic.swift b/test/Concurrency/Runtime/async_task_priority_basic.swift
@@ -1,7 +1,7 @@
 // RUN: %target-run-simple-swift(-Xfrontend -enable-experimental-concurrency) | %FileCheck %s --dump-input always
 // REQUIRES: executable_test
 // REQUIRES: concurrency
-// REQUIRES: OS=macosx
+// REQUIRES: libdispatch
 
 import Dispatch
 
diff --git a/test/Concurrency/Runtime/basic_future.swift b/test/Concurrency/Runtime/basic_future.swift
@@ -2,7 +2,7 @@
 
 // REQUIRES: executable_test
 // REQUIRES: concurrency
-// REQUIRES: OS=macosx
+// REQUIRES: libdispatch
 // XFAIL: CPU=arm64e
 
 import Dispatch
diff --git a/test/Concurrency/Runtime/future_fibonacci.swift b/test/Concurrency/Runtime/future_fibonacci.swift
@@ -2,7 +2,7 @@
 
 // REQUIRES: executable_test
 // REQUIRES: concurrency
-// REQUIRES: OS=macosx
+// REQUIRES: libdispatch
 // XFAIL: CPU=arm64e
 
 import Dispatch
