[libc++abi] Adjust test_exception_storage.pass.cpp

[ldionne]

Summary

Stop including the <unistd.h> and <__threading_support> headers in
single-threaded configurations (when these headers are not required).

[michaelplatings]

libcxxabi/test/test_exception_storage.pass.cpp

16–17

I think these should be indented now e.g. # include <...>

[miyuki]

Fixed indentation.

[michaelplatings]

LGTM

[miyuki]

Ping

[michaelplatings]

Maybe another member of the libc++abi group can approve this little change?

[ldionne]

[Github PR transition cleanup]

Abandoning in favor of https://reviews.llvm.org/D138460.

libcxxabi/test/test_exception_storage.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 #include <algorithm>
 #include <cstdio>
 #include <cstdlib>
+
+#include "test_macros.h"
+
+#ifndef TEST_HAS_NO_THREADS
 #include <__threading_support>
 #include <unistd.h>
+#endif
 
 #include "../src/cxa_exception.h"
 
-#include "test_macros.h"
-
 typedef __cxxabiv1::__cxa_eh_globals globals_t ;
 
 void *thread_code (void *parm) {
     size_t *result = (size_t *) parm;
     globals_t *glob1, *glob2;
 
     glob1 = __cxxabiv1::__cxa_get_globals ();
     if ( NULL == glob1 )