Nico Rieck:  this patch series fixes visibility issues on Windows as explained in <http://lists.cs.uiuc.edu/pipermail/cfe-dev/2013-August/031214.html>.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@188192 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/initializer_list b/include/initializer_list
index 181313d..cdcd688 100644
--- a/include/initializer_list
+++ b/include/initializer_list
@@ -56,7 +56,7 @@
 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
 
 template<class _Ep>
-class _LIBCPP_TYPE_VIS initializer_list
+class _LIBCPP_TYPE_VIS_ONLY initializer_list
 {
     const _Ep* __begin_;
     size_t    __size_;