fix test on iphonesimulator

Marc Rasi · Marc Rasi · commit 9e5b4c107db6 · 2020-04-17T20:51:04.000-07:00
diff --git a/test/AutoDiff/validation-test/separate_tangent_type.swift b/test/AutoDiff/validation-test/separate_tangent_type.swift
@@ -2,7 +2,7 @@
 // REQUIRES: executable_test
 
 import StdlibUnittest
-#if os(macOS)
+#if os(macOS) || os(iOS) || os(watchOS) || os(tvOS)
 import Darwin.C
 #else
 import Glibc
