Visual C++ doesn't support C99 compound literal

[fsb4000]

Summary

Fix test libcxx/test/std/containers/sequences/array/array.creation/to_array.pass.cpp

[fsb4000]

another try

[fsb4000]

use _MSVC_STL_VERSION

[Mordante]

Thanks again, LGTM!

libcxx/test/std/containers/sequences/array/array.creation/to_array.pass.cpp

//  Test deduced type.
     MoveOnly source[] = {MoveOnly{0}, MoveOnly{1}, MoveOnly{2}};
 
     auto arr = std::to_array(std::move(source));
     ASSERT_SAME_TYPE(decltype(arr), std::array<MoveOnly, 3>);
     for (int i = 0; i < 3; ++i)
       assert(arr[i].get() == i && source[i].get() == 0);
   }
 
+#ifndef _MSVC_STL_VERSION
   // Test C99 compound literal.
   {
     auto arr = std::to_array((int[]){3, 4});
     ASSERT_SAME_TYPE(decltype(arr), std::array<int, 2>);
     assert(arr[0] == 3);
     assert(arr[1] == 4);
   }
+#endif // ! _MSVC_STL_VERSION
 
   //  Test explicit type.
   {
     auto arr = std::to_array<long>({1, 2, 3});
     ASSERT_SAME_TYPE(decltype(arr), std::array<long, 3>);
     assert(arr[0] == 1);
     assert(arr[1] == 2);
     assert(arr[2] == 3);