[libc++] Enable std::function ABI bug demonstration on Apple Clang too

Cr-Mirrored-From: https://chromium.googlesource.com/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 97d8d6ab38224d689b96beae3c38860eb6131039
diff --git a/test/libcxx/utilities/function.objects/abi_bug_cxx03_cxx11_example.sh.cpp b/test/libcxx/utilities/function.objects/abi_bug_cxx03_cxx11_example.sh.cpp
index 1d43ff6..2fc2f32 100644
--- a/test/libcxx/utilities/function.objects/abi_bug_cxx03_cxx11_example.sh.cpp
+++ b/test/libcxx/utilities/function.objects/abi_bug_cxx03_cxx11_example.sh.cpp
@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-// REQUIRES: clang
+// REQUIRES: clang || apple-clang
 // XFAIL: *
 
 // This tests is meant to demonstrate an existing ABI bug between the